At time t in seconds, a particle's distance s(t), in cm, from a point is given in the table. What is the average velocity of the particle from t=3 to t= 10?table:
t 0, 3, 6, 10, 13
s(t) 0, 72, 92, 144, 180

Answers

Answer 1

The average velocity is 0.1 meters per second.

Average velocity:

The displacement of a body during a period of time divided by the passage of time yields the average velocity of the body during that period. Therefore, if a particle travels along a specific displacement vector AB between times t₁ and t₂, its average speed is:

Average velocity = AB/ [t₂ - t₁]

Here we have

At time t in seconds, a particle's distance s(t), in cm, from a point is given in the table.  

t     0    3     6    10     13

s(t)  0   72   92   144  180    

As we know

Average velocity = [ Total distance ]/[ Total time]    

From the given table,

The total distance traveled up to t = 10, = 144 - 72 = 72

As we know 100 cm = 1 meter

=>  72 cm = 72 × 1/100 = 0.72 m

The total time from t = 3 to t = 10, = 10 - 3 = 7  

Average distance = 0.72/7 = 0.10 meter per sec  

Therefore,

The average velocity is 0.1 meters per second.  

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Related Questions

The student population at the local high school is 1,375 and is decreasing by 2% each year. what will the student population be after 7 years?

Answers

To find the student population after 7 years, we need to calculate the decrease each year and subtract that from the initial population.

The decrease each year is 2% of the current population, so:

Year 1: 1,375 - (1,375 x 0.02) = 1,375 - 27.5 = 1,347.5
Year 2: 1,347.5 - (1,347.5 x 0.02) = 1,347.5 - 26.95 = 1,320.55
...
Year 7: 1,320.55 - (1,320.55 x 0.02) = 1,320.55 - 26.411 = 1,294.14

So after 7 years, the student population will be approximately 1,294.14.




Please brainliest

A jogging trail has sides that measure 168 yards 2 feet, 175 yards, and 96 yards 1 foot. How many laps around the trail is equal to 1 mile (1,760 yards)?

Answers

Answer:

4 laps

Step-by-step explanation:

A jogging trail has sides that measure

168 yards 2 feet,

175 yards, and

96 yards 1 foot.

total = 168+175+96 yards and 3 feet= 439 yd 3ft

1 yard = 3ft

so total 440yd

How many laps around the trail is equal to 1 mile (1,760 yards)?

1760/440 = 4laps

Please help ASAP I rlly need this

Answers

The solution is, center = ( 0,0) & coefficient = 3

What is dilation?

The act or action of enlarging, expanding, or widening : the state of being dilated: such as. : the act or process of expanding (such as in extent or volume)

here, we have,

from the given figure,

we get,

length of MQ = 8.48

length of M'Q' = 2.82

so, dilation factor = 8.48/2.82

                             = 3

and, we get, the center of dilation = (0,0)

Hence, The solution is, center = ( 0,0) & coefficient = 3

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Find the length of side x.
Give your answer to 1 decimal place.
13 cm
98°
X
17 cm

Answers

[tex]\textit{Law of Cosines}\\\\ c^2 = a^2+b^2-(2ab)\cos(C)\implies c = \sqrt{a^2+b^2-(2ab)\cos(C)} \\\\[-0.35em] ~\dotfill\\\\ x = \sqrt{13^2+17^2~-~2(13)(17)\cos(98^o)} \implies x = \sqrt{ 458 - 442 \cos(98^o) } \\\\\\ x\approx\sqrt{519.51}\implies x\approx 22.8[/tex]

Make sure your calculator is in Degree mode.

Employee Salaries Employee Salary [before raise] Raise Jane $41,400 4% John $44,000 4.5% Jack $39,400 3% What is the total of all three raises?

need answer

Answers

Answer:

The total of all three raises is $1,890. Jane's raise is $1,660 (4% of $41,400), John's raise is $1,980 (4.5% of $44,000), and Jack's raise is $1,250 (3% of $39,400).

Given the function f(x) = 7x2 – 6x + 3. Calculate the following values using synthetic division and the Remainder Theorem: f( – 2) f( - 1) = f(0) f(1) f(2) 

Answers

By using synthetic division and the Remainder Theorem, we have found that f(-2) = -14, f(-1) = -7, f(0) = 7, f(1) = -6 and f(2) = -6.

Synthetic Division: Synthetic division is a shorthand method for dividing polynomials. It is used to divide a polynomial by a binomial of the form x - k, where k is a real number. To perform synthetic division, the coefficients of the polynomial are written in a row and divided by the denominator of the binomial.

To calculate f(-2), f(-1), f(0), f(1), f(2):

We will use synthetic division with the binomial x - k, where k = -2, -1, 0, 1, 2.

First, we will write the coefficients of the polynomial in a row:

7, -6, 3

For k = -2:

7|-2  -1  3

-2|-14  0  0

4  1  3

Therefore, f(-2) = -14.

For k = -1:

7|-1  -2  3

-1|-7  0  0

7  1  3

Therefore, f(-1) = -7.

For k = 0:

7|0  -1  3

0|7  0  0

7  -1  3

Therefore, f(0) = 7.

For k = 1:

7|1  0  3

1|7  -6  0

Therefore, f(1) = -6.

For k = 2:

7|2  1  3

2|14  -6  0

Therefore, f(2) = -6.

By using synthetic division and the Remainder Theorem, we have found that f(-2) = -14, f(-1) = -7, f(0) = 7, f(1) = -6 and f(2) = -6.

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USE STRUCTURE Explain how you can use Theorem 7.11 to construct a parallelogram by dragging the steps into the correct order. Then construct a parallelogram on a separate sheet of paper using your method.

Answers

1. The diagonals bisect each other.

2. The diagonals of parallelogram are perpendicular and equal to each other.

What is Parallelogram?

A quadrilateral with two sets of parallel sides is referred to as a parallelogram. In a parallelogram, the opposing sides are of equal length, and the opposing angles are of equal size. Additionally, the interior angles that are additional to the transversal on the same side.

Given:

Using the theorem a quadrilateral whose diagonal bisect each other is a parallelogram.

Then, the diagonals bisect each other then the quadrilateral is a parallelogram.

As, the diagonals of parallelogram are perpendicular and equal to each other then , the parallelogram is a square.

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Find the exact length of the midsegment of the trapezoid with the vertices S(-2, 4), T(-2,-4), U(3,-2), V(13,10)

Answers

The exact length of the midsegment of the trapezoid is  √29 units.

What is Distance?

The length along a line or line segment between two points on the line or line segment.

Distance=√(x₂-x₁)²+(y₂-y₁)²

The midsegment of a trapezoid is the line segment that connects the midpoints of the two non-parallel sides. Let's first find the midpoints of the sides SU and TV.

The midpoint of SU can be found as:

((Sx + Ux)/2, (Sy + Uy)/2) = ((-2 + 3)/2, (4 - 2)/2) = (1/2, 1)

Similarly, the midpoint of TV can be found as:

((Tx + Vx)/2, (Ty + Vy)/2) = ((-2 + 13)/2, (-4 + 10)/2) = (5.5, 3)

Now we can find the length of the midsegment that connects these two midpoints.

Distance=√(x₂-x₁)²+(y₂-y₁)²

So the length of the midsegment is:

d = √(5.5 -0.5)²+ (3 - 1)²)

= √25 + 4= = √29

Therefore, the exact length of the midsegment of the trapezoid is  √29 units.

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Plsss can you give me all th fractions of percentages but I don’t want something like 20/100 plsss give me fractions like 1/2=50 and I almost forgot when you give me the fractions plss also give me the percentages

Answers

Answer:

Here are some fractions and equivalent percentages.

1/4 = 1/4 x 100 = 25%
1/8 = 1/8 x 100 = 12.5$
3/8 = 3/8 x 100 = 300/8 = 37.5%
3/4 = 3/4 x 100 = 75%
1/3 = 1/3 x 100 = 33.33% (rounded to 2 decimal places)
54% = 54/100 = 27/50

Here are some percentages and equivalent fractions:
54% = 54/100 = 27/50
36% = 36/100
45% = 9/20
20% = 1/5
30% = 3/10

Step-by-step explanation:

To convert a fraction to a percentage, multiply by 100

To convert a percentage to a fraction, divide by 100 and reduce to lowest fractional form

Examples:

1/4 = 1/4 x 100 = 25%

1/8 = 1/8 x 100 = 12.5$

3/8 = 3/8 x 100 = 300/8 = 37.5$

3/4 = 3/4 x 100 = 75%

1/3 = 1/3 x 100 = 33.33% (rounded to 2 decimal places)

Similarly,

54% = 54/100 = 27/50

36% = 36/100
dividing by 4 both numerator and denominator gives
36% = 36/100 = 9/20

45% = 45/100 = 9/20  (divide by 5)

20% = 20/100 = 1/5


A business office orders paper supplies from one of three vendors, V1, V2, or V3. Orders are to be placed on two successive days, one order per day. Thus, V2V3 might denote that vendor V2 gets the order on the first day and vendor V3 gets the order on the second day. (a) List the sample points in this experiment of ordering paper on two successive days. (Enter your answer in set notation.) (b) Assume the vendors are selected at random each day. What is the probability of each sample point? (Enter your probability as a fraction.) the event that V2 gets at least one order. Find P(A), P(B), P(AUB), and P(ANB) by summing the probabilities of the sample points in these events. (Enter your (c) Let A denote the event that the same vendor gets both orders and probabilities as fractions.) P(A) = P(B) = P(AUB) - P(ANB) =

Answers

As a fraction, the probability of each sample point is 8/9.

What is probability?

The field of mathematics concerned with probability is known as probability theory. Although there are various distinct interpretations of probability, probability theory approaches the idea rigorously mathematically by articulating it through a set of axioms.

Here,

(a) The sample points in this experiment are:

V1V1, V1V2, V1V3, V2V1, V2V2, V2V3, V3V1, V3V2, V3V3

(b) Since the vendors are selected at random each day, each sample point has the same probability of occurrence. There are a total of 3 * 3 = 9 possible sample points, so each sample point has a probability of 1/9.

(c) Let A denote the event that the same vendor gets both orders, and let B denote the event that V2 gets at least one order.

P(A) is the probability that the same vendor gets both orders, so it is the sum of the probabilities of the sample points V1V1, V2V2, and V3V3. P(A) = 1/9 + 1/9 + 1/9 = 3/9.

P(B) is the probability that V2 gets at least one order, so it is the sum of the probabilities of the sample points V2V1, V2V2, and V2V3. P(B) = 1/9 + 1/9 + 1/9 = 3/9.

P(AUB) is the probability of either A or B occurring, so it is the sum of the probabilities of all 9 sample points. P(AUB) = 9/9 = 1.

P(ANB) is the probability of both A and B occurring, so it is the sum of the probabilities of the sample points V2V2. P(ANB) = 1/9.

So, P(AUB) - P(ANB) = 1 - 1/9 = 8/9.

The probability of each sample point as a fraction is 8/9.

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Jane mixes the juice in jug A with the water in jug B.
What is the capacity of her mixture in litres?
Jug A
millilitres
-1000
-900
-800
-700
-600
عاااالسالسا
-500
-400
-300
-200
-100
Jug B
Litres

Answers

The capacity of her mixture in liters is 1.6 L

What is capacity?

Capacity describes your ability to do something or the amount something can hold.

Given that, Jane mixes the juice in jug A with the water in jug B, we need to find that, what is the capacity of her mixture in liters,

We know that,

1 L = 1000 ml

Jug A = 400 × 1L / 1000 ml = 0.4 L

Jug B = 12 / 10 L = 1.2 L

Total = 0.4 + 1.2 = 1.6 L

Hence, the capacity of her mixture in liters is 1.6 L

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Please help me with the answer to this question

Answers

The answer as a result of the numerical expression above is B) 1/36

How to solve rank equation

This expression is rank number:

[tex]( {6}^{ - 4} ) {}^{ \frac{1}{2} } = 6 {}^{ - 2} = \frac{1}{ {6}^{2} } = \frac{1}{36}.

So the answer as a result of the numerical expression above is 1/36.

From these calculations it can be seen that the rank between what is inside the brackets and what is outside it can be multiplied.

In the question above the power of -4 multiplied by the power of ½ ( (-4×½) the result is -2.

So all that's left is 6⁻². Another form of 6⁻² is 1/6² or 1/36.

This refers to the exponential rule in mathematics, namely a⁻ⁿ can be written as 1/aⁿ.

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an acorn if falling from 13 feet in the air. If it descends 4.8 feet every second, write and solve an equation to determine how long it will take for the acorn to be 1 foot above the ground

Answers

Answer:

Step-by-step explanation:

To solve this - determine how long it takes the acron to fall 12 feet.

At that point it will be 1 foot above ground.  13-1 = 12 so you are solving for how long it takes for the acorn to fall 12 feet.

Make a proportion:  

seconds    =    1     =        x

distance        4.8            12

If the acorn falls 4.8 feet every second, how long does it take to fall 12 feet, which is one foot above the ground.

Cross multiply:   4.8x= 12 (1)

                           4.8x = 12

divide each side by 4.8

                          4.8x/4.8 = 12/4.8

                              x       =   2.5

It takes 2.5 seconds to be one foot above the ground or fall 12 feet.

In a certain molecule, atom X is bonded to H. The force of attraction for X’s nucleus on the shared valence electron is 2.2 x 10-8 N. If the radius of atom X is 1.02 x 10-10 m, predict the number of protons in X’s nucleus. Predict the identity of atom X. Show your set-up.

Answers

An atom X has 3 protons in its nucleus. An atomic number of 3 corresponds to the element lithium (Li).

What is an expression?

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

We can use Coulomb's law to predict the number of protons in X's nucleus. Coulomb's law states that the force of attraction between two charges is proportional to the product of the charges and inversely proportional to the square of the distance between them.

⇒ F = k (q₁ q₂) / r²

Where, F is the force of attraction, k is the Coulomb constant (8.99 x 10⁹ Nm²/C²), q₁ and q₂ are the magnitudes of the charges, and r is the distance between them.

We can rearrange the equation to solve for the charge:

⇒ q₂ = (F * r²) / (k * q₁)

In this case, q1 is the charge on the electron, which is -1.60 x 10⁻¹⁹ C. The radius of atom X, r, is given, and the force of attraction, F, is also given.

So, we have:

⇒ q₂ = (2.2 x 10⁻⁸ N * (1.02 x 10⁻¹⁰ m)²) / (8.99 x 10⁹ Nm²/C^2 * -1.60 x 10⁻¹⁹ C)

Solving for q₂, we find that;

q₂ = +5.4 x 10⁻¹⁹ C.

This is the charge on the nucleus of atom X. The number of protons in the nucleus of atom X can be found by dividing the charge by the charge of a proton:

⇒ N = q₂ / qp

Where N is the number of protons and qp is the charge on a proton, which is +1.60 x 10⁻¹⁹ C.

So, we have:

N = (5.4 x 10⁻¹⁹ C) / (1.60 x 10⁻¹⁹ C) = 3.375

Hence, the number of protons must be a whole number, the closest whole number to 3.375 is 3. This means that atom X has 3 protons in its nucleus. The identity of atom X can be determined based on its atomic number, which is equal to the number of protons in its nucleus. An atomic number of 3 corresponds to the element lithium (Li).

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Find the x-intercept and y-intercept of the line.
x+2y=6
x -intercept:
y -intercept:
8 08
X
Ś

Answers

Answer:

x + 2y = 6

2y = -x -6

y = - 1/2 x - 3

From the equation, the y intercept is -3

Put y = 0,

-1/2 x -3 = 0

-1/2 x = 3

x = -6

Therefore, x intercept = -6

A wire 14 cm long is cut into two pieces. The longer piece is 4 cm longer than the shorter piece. Find the length of the shorter piece of wire

Answers

Answer:

5cm

Step-by-step explanation:

Let x represent the shorter wire

if the shorter wire = x

therefore the longer wire = x+4

Write an equation

[tex] x + x + 4 = 14[/tex]

Subtract 4 from both sides

[tex]x + x + 4 - 4 = 14 - 4[/tex]

[tex]x + x = 10[/tex]

[tex]2x = 10[/tex]

Divide both sides by 2

[tex] \frac{2x}{2} = \frac{10}{2} [/tex]

[tex]x = 5[/tex]

To indirectly measure the distance across a river, Madeline stands on one side of the river and uses sight-lines to a landmark on the opposite bank. Madeline draws the diagram below to show the lengths and angles that she measured. Find PR, the distance across the river. Round your answer to the nearest foot.

Answers

Therefore, the distance across the river is approximately 283 feet (rounded to the nearest foot).

What is equation?

An equation is a mathematical statement that uses symbols, such as letters and numbers, to show that two expressions are equal. It typically consists of two sides separated by an equals sign. The expressions on both sides can contain variables, constants, functions, and operators, and the goal is often to solve for the value(s) of the variable(s) that make the equation true. Equations are used extensively in mathematics, science, engineering, and many other fields to model real-world phenomena, make predictions, and solve problems.

Here,

Without a diagram, it is difficult to determine the exact location and orientation of the points and lines. However, based on the information provided, we can use the Law of Sines to find the length of PR.

In triangle ROC, we have:

sin(CEO) = RO/OC

sin(CEO) = 165/330

sin(CEO) = 0.5

CEO = sin⁻¹(0.5)

CEO = 30 degrees

In triangle REO, we have:

sin(ERO) = RO/RE

sin(ERO) = 165/210

sin(ERO) = 0.7857

ERO = sin⁻¹(0.7857)

ERO = 51.06 degrees

Now, in triangle PER, we have:

sin(PER) / 210 = sin(ERO) / PR

Therefore, we can solve for PR:

PR = 210 * sin(ERO) / sin(PER)

PR = 210 * sin(51.06) / sin(180 - CEO - ERO)

Plugging in the values, we get:

PR = 210 * sin(51.06) / sin(99.94)

PR ≈ 283.2 feet

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Solve the system by substitution

Answers

the value of x=17/9 and y=5 by solving the system of equations.

What is a System of Equations?

When two or more algebraic equations are solved together, they form a system of equations. A system of linear equations is a collection of equations that are all satisfied by a single set of variables. The first stage in resolving an equation system is determining the values of the variables used in the equation system. We determine the values of the unknown variables while keeping the equations' equality on both sides. The main purpose of solving an equation system is to identify a variable whose value makes the condition of each equation in the system true.

The given equation are

9x+2y = 27

y=-8x+31

9x+2y =27

16x+2y =62

7y = 62-27

7y = 35

y=5

x = 17/9

Hence the value of x=17/9 and y=5 by solving the system of equations.

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13) A cutlery manufacturer packs 200 teaspoon into boxes holding either 4 spoons or six spoons.there are 48 full boxes.
are 48 full boxes,
a) If there are a four-spoon boxes and y six spoons boxes use the information to find two equations relating to x and y
relating x and y.
b) How many boxes hold four spoons

Answers

Answer:

Step-by-step explanation:

890

Practice questione Given the following equation, Identify the vertical and horizontal intercepts. y-28. 4x Solution: We can find the vertical Intercept by setting the value of x equal to zero: y = 28-4/0) - 28-the vertical intercept is 28. We find the value of the horizontal Intercept by setting the value for y equal to zero and solving for x. 0-28. 4x 4x = 28 x= 7 -- the horizontal intercept is 7. Question: Graph the following equation by identifying and locating the vertical and horizontal intercepts. y = 12. 3x Instructions: Plot the endpoints of this Nne only as vertical and horizontal intercepts. 18 16 14 12 16 90 12 14 16 18 20 X

Answers

To graph the equation y = 12.3x, identify and locate the vertical and horizontal intercepts. To do this, set x equal to zero to find the vertical intercept, which is y = 12.3(0) = 0. Then, set y equal to zero to find the horizontal intercept, which is x = 0/12.3 = 0.

To graph the equation y = 12.3x, we need to identify and locate the vertical and horizontal intercepts. The vertical intercept is found by setting x equal to zero, which gives us y = 12.3(0) = 0. This means the vertical intercept is at the point (0,0). The horizontal intercept is found by setting y equal to zero, which gives us x = 0/12.3 = 0. This means the horizontal intercept is at the point (0,12.3). We can then plot these two points to graph the equation. Drawing a line through the points, we can see that the equation is a straight line that goes through the origin with a positive slope, meaning that as x increases, so does y. This line has a y-intercept of 0 and an x-intercept of 12.3.

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15. ABC is
a. Congruent
b. Similar
c. Neither
to A'B'C'.

Answers

Answer:

The figures are similar.

Step-by-step explanation:

The scale factor is 2.  The transformation is a a dilation.

What is the Formula for mean of sample distribution sample proportions

Answers

For large samples, the sample proportion is approximately normally distributed, with mean μˆP=p. and standard deviation σˆP=√pqn

Taken from stats.libretexts.org btw^^

Kelsey’s neighborhood has a straight road with stop signs at both ends and a fire hydrant at its midpoint. On a map, the fire hydrant is located at (12,7) and one of the stop signs is located at (3,11). Where on the map is the other stop sign located?

Answers

The coordinate of the other stop sign located will be (21, 3).

What is the mid-point of the line segment?

Let AB be the line segment and C be the mid-point of line segment AB. Let the coordinate of point A (x₁, y₁), the coordinate of point B (x₂, y₂), and the coordinate of the mid-point (x, y).

Then the coordinate of the mid-point of the line segment is given as,

(x, y) = [(x₁ + x₂) / 2, (y₁ + y₂) / 2]

Kelsey’s neighborhood has a straight road with stop signs at both ends and a fire hydrant at its midpoint. On a map, the fire hydrant is located at (12,7) and one of the stop signs is located at (3,11).

Then the coordinate of the other stop sign located is given as,

(12, 7) = [(x₁ + 3) / 2, (y₁ + 11) / 2]

(24, 14) = [x₁ + 3, y₁ + 11)

(21, 3) = (x₁, y₁)

(x₁, y₁) = (21, 3)

The coordinate of the other stop sign located will be (21, 3).

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A video game system and several games are sold for $612. The cost of the games is
times as much as the cost of the system. Find the cost of the
system and the cost of the games.
Cost of the video game system:
Cost of the games:



URGENT PLEASE HELP.

Answers

Let's call the cost of the video game system "x". Then the cost of the games would be 3x.

So the total cost would be x + 3x = 4x = $612.

Solving for x, we get:

x = $153.

Therefore, the cost of the video game system is $153 and the cost of the games is 3 * $153 = $459

brainest if correct!!
To the nearest hundredth, what is the length of linesegmentAB?

Answers

Answer: 5.83 units. please give brainliest

Step-by-step explanation: Using the distance formula, we can find the distance between the two points A(1, -5) and B(-4, -2):

d = sqrt((x2 - x1)^2 + (y2 - y1)^2)

d = sqrt((-4 - 1)^2 + (-2 - (-5))^2)

d = sqrt((-5)^2 + 3^2)

d = sqrt(25 + 9)

d = sqrt(34)

To the nearest hundredth, the length of line segment AB is approximately 5.83 units.

Given

(

)
=

3
+



4
f(x)=x
3
+kx−4, and the remainder when

(

)
f(x) is divided by


3
x−3 is
5
5, then what is the value of

k?

Answers

Answer:

Step-by-step explanation:

Given

True/False. A contour line defines the outer edge or profile of an object, and can be used to suggest a volume in space.

Answers

True, a contour line defines the outer edge or profile of an object, and can be used to suggest a volume in space.

Describe volume of object?

It is the amount of space contained within the boundaries of an object and is typically represented by cubic units such as cubic centimeters (cm³), cubic meters (m³), or cubic inches (in³).

Volume can be calculated for various three-dimensional objects such as a cube, sphere, cylinder, or pyramid. The formula for finding the volume of an object depends on its shape. For example, the formula for the volume of a cube is V = s³, where s is the length of one of its sides. The formula for the volume of a cylinder is V = π²h, where r is the radius of the base, h is the height of the cylinder, and π is a mathematical constant approximately equal to 3.14.

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A chemist has three different acid solutionsThe first acid solution contains 25% acid, the second contains 45\% and the third contains 65%. He wants to use three solutions to obtain a mixture of 224 liters containing 35% acid, using 3 times as much of the 65% solution as the 45% solution. How many liters of each solution should be used?

The chemist should use __ liters of 25% solution, ___ liters of 45% solution, and ____ liters of 65% solution

Answers

Answer:

160 L of 25%16 L of 45%48 L of 65%

Step-by-step explanation:

You want the number of liters of 25%, 45%, and 65% acid solution required to make a mixture that is 224 L of a 35% acid solution, using 3 times as much of the 65% solution as of the 45% solution.

Setup

There are numerous ways this mixing problem can be formulated. The calculator display in the attachment shows one of them: 3 equations in 3 unknowns.

Here, we choose to use one variable. Let x represent the amount of 45% solution. Then 3x is the amount of 65% solution, and (224 -4x) is the amount of 25% solution. The amount of acid in the final mix is ...

  0.25(224 -4x) + 0.45x + 0.65(3x) = 0.35·224

Solution

The equation can be simplified to ...

  1.4x +56 = 78.4

  1.4x = 22.4

  x = 16 . . . . . . . . . liters of 45% solution

  3x = 48 . . . . . . . . liters of 65% solution

  224 -4x = 224 -64 = 160 . . . . liters of 25% solution

The chemist should use ...

160 L of 25%16 L of 45%48 L of 65%

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1st “select an answer” is either miles or dollars
2nd “select an answer” is either miles or dollars

Answers

Based on the given information:

The linear equation between cost of truck rent and distance is: C(d) = 22.95 + 0.72dThe cost needed to drive the truck for 15 miles is $33.75With budget of $110, you can drive the truck up to 120.9 miles

From the case we know that the cost of rent a truck was charged by 2 rules:

Cost per truck = fixed cost = $22.95

Cost per miles distance = variable cost = $0.72 per mile

Both costs can be formulated as a linear equation:

C(d) = 22.95 + 0.72d

where we take the fixed cost of $22.95 as the y-intercept and the variable cost of $0.72 per mile as the slope of the line.

Based on our linear equation, we can try to find the cost needed to rent a truck and drive it for 15 miles:

C(15) = 22.95 + 0.72(15)

C(15) = 22.95 + 10.8

C(15) = $33.75

We can use the same approach to find the available distance for our budget of $110:

C(d) = 22.95 + 0.72d

110 = 22.95 + 0.72d

0.72d = 87.05

d = 120.9

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Jimmy has five dollars more than three times Bethany has.
Jimmy and Bethany pooled their money together and have
$130. How much money does Jimmy have?

Answers

Jimmy  has five dollars more than three times Bethany has. Jimmy has $31.25.

A mathematical statement with two equal algebraic expressions is called an algebraic equation. Equations in algebra with only one variable are referred to as univariate equations, while equations with several variables are referred to as multivariate equations.

Let's say Jimmy has [tex]x[/tex] dollars.

Three times the amount of money Bethany has is [tex]3x[/tex].

Jimmy has 5 dollars more than three times what Bethany has,

so, [tex]x = 3x + 5[/tex]

The combined amount of money Jimmy and Bethany have is $130,

so, [tex]x + 3x +5= 130[/tex]

Combining like terms, [tex]4x = 125[/tex].

Dividing both sides by 4, [tex]x = 31.25[/tex]

So Jimmy has $31.25.

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Answer:

Jimmy have $98.75.

Step-by-step explanation:

let J=money Jimmy have

B= money Batheby have

therefore J = 5+3B.....................(1)

but J + B = $130.......................(2).

putting equation (1) into 2

5 + 3B + B = 130

4B = 130 - 5

4B = 125

4B/4 = 125/4

B = 31.25

therefore J = 5+ 3B = 5 + 3(31.25)

= 5 + 93.75

= $98.75.

therefore Jimmy have $98.75.

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