1 kilograms of pears cost as much as 1. 5 kilograms of apples. Alex paid $34. 20 for 4 kilograms of pears and 3 kilograms for apples. How much did 1 kilogram of pears cost?

Answers

Answer 1

The cost of 1 kilogram of pears is $5.70.

How determine the cost

The cost of 1 kilogram of pears can be found by using the given information and setting up an equation. First, let's repeat the question: "1 kilogram of pears cost as much as 1.5 kilograms of apples. Alex paid $34.20 for 4 kilograms of pears and 3 kilograms for apples. How much did 1 kilogram of pears cost?"

Let's assign variables to the unknowns:

- P = cost of 1 kilogram of pears

- A = cost of 1 kilogram of apples

From the question, we know that:

- 1P = 1.5A - 4P + 3A = 34.20

Now, we can use substitution to solve for P.

1. Substitute 1.5A for P in the second equation: 4(1.5A) + 3A = 34.20

2. Simplify: 6A + 3A = 34.20

3. Combine like terms: 9A = 34.20

4. Solve for A: A = 34.20/9 A = 3.8

5. Substitute 3.8 for A in the first equation: 1P = 1.5(3.8)

6. Solve for P: P = 5.7

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Related Questions

9th grade math i need help in

Answers

The fourth term in the sequence is 7.

What is Geometric Progression?

Geometric progression is a sequence of numbers such that the ratio of two consecutive numbers is the same for whole sequence.

This ratio is common ratio.

Given is the first term of a sequence.

c(1) = 56

Also, there is given an nth term of the sequence.

c(n) = c(n - 1) [tex]\frac{1}{2}[/tex]

This means that every term in the sequence is the half of the preceding term.

So this is a geometric sequence with a common ratio of 1/2.

nth term of a geometric sequence = a. rⁿ⁻¹, where a is the first term and r is the common ratio.

Given, first term = 56 and we found r = 1/2

c(4) = 56 × ([tex]\frac{1}{2}[/tex])⁴⁻¹ = 7

Hence the fourth term in the given sequence is 7.

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Compare 5/8 and 1/3 please hurry!

Answers

Answer:5/8

Step-by-step explanation:

Lowest common denominator is 24

15/24 > 8/24

5/8>1/3

how many pounds is 65 kg

Answers

Answer is 143.3 pounds

Step by step

Conversion: multiply the kg value by 2.205

65 x 2.205 = 143.325 rounded to nearest tenth =
143.3 lbs

write an expression for w more
than
a number 28

Answers

Answer:

W > 28

W has to be greater than 28

The median and the height of an isosceles trapezoid are equal in length. One diagonal of the trapezoid has length $12$. What is the area of the trapezoid?

Answers

The area of the isosceles trapezoid is 72 square units.

What is isosceles trapezoid ?

A quadrilateral having at least one set of parallel sides and equal length non-parallel sides is called an isosceles trapezium. To put it another way, it is a trapezium whose two non-parallel sides are congruent. The trapezoid's parallel sides are referred to as the bases, and the segments that link the bases are referred to as the legs. The angle between the bases of an isosceles trapezoid determines its height.

Given:

[tex]\[d = 12 \quad \text{(length of one diagonal)}\][/tex]

Let;

[tex]\[h = \text{height of the trapezoid}\][/tex]

[tex]\[a = \text{smaller base of the trapezoid}\][/tex]

[tex]\[b = \text{larger base of the trapezoid}\][/tex]

Using the given information that the height and median are equal, we have:

[tex]Median(m)=\frac{1}{2} {(a+b)}\\\\Height(h)=\frac{1}{2} {(a+b)}\\\\2h=a+b ........(1)[/tex]

[tex]\[\text{Area} = \frac{1}{2} \cdot (a + b) \cdot h\][/tex]

[tex]\[\text{Area} = m \cdot h\] = h^2 ............(2)[/tex] (∵ [tex]Median(m)=\frac{1}{2} {(a+b)}[/tex] and m=h)

Now,

[tex]\[ d = \sqrt{h^2 + \frac{(a+b)^2}{4}} \][/tex] for isosceles trapezoid,

[tex]\[ 12^2 = h^2 + \frac{(a+b)^2}{4}}[/tex]

[tex]\[ 12^2 = h^2 + \frac{(2h)^2}{4}}[/tex]   (∵from eq (1))

[tex]\[ 12^2 = h^2 + {(h)^2}}\\ \\144= 2h^2\\\\h^2=72 ..........(2)[/tex]

Lastly, we may change the values of "a," "b," and "h" in the following formula to find the area as;

[tex]\[\text{Area} = \frac{1}{2} \cdot (a + b) \cdot h\][/tex]

[tex]\[\text{Area} = \frac{1}{2} \cdot (2h) \cdot h\][/tex]

[tex]\[\text{Area} = h \cdot h\] = h^2 = 72 sq units[/tex]

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Emma created the poster shown below... What would be the dimensions of the poster at fraction 1 over 4 times its current size?

Answers

Answer:

6w by 9L

Step-by-step explanation:

24 x 1/4=6

36 x 1/4=9

Shondra takes notes in class.



Three entries in Shondra’s notes are not in the right place. What can Shondra do to correct her notes?

Answers

Step-by-step explanation:

What notes are you speaking of?

What I would do is somehow put an arrow

Hello can you help with this please

Answers

Answer:

133

Step-by-step explanation:

All 3 angles of a triangle must equal 180, so let's make these equal to that

[tex](x + 13) + (10x + 13) + (2x - 2) = 180[/tex]

Now let's combine the X's and the regular numbers together.

[tex]13x + 24 = 180[/tex]

Next, subtract 24 to get all the numbers on the right side.

[tex]13x = 156[/tex]

And lastly, we divide by 13 to get X alone

[tex]x = 12[/tex]

Since Q is (10x + 13), we plug that 12 in

[tex]10(12) + 13 = 133[/tex]

please answer thank you!!!!!!!!!

Answers

The measure of the angle formed by 2 secants that have a common point outside a circle is 1/2 the difference of the measure of the further intercepted arc and the closer intercepted arc. That means that half of the the measure of arc ABC - measure of arc XYZ is the measure of angle X. Substituting the given values gives you the equation x = 1/2 (125-45)

Then you can solve.

x = 1/2 (80)

x = 40

The measure of angle X is 40 degrees

25 points! the radius r of a sphere with volume v is given by r= (3v/4π)
find the radius of a ball that hold 66 cubic centimeters of air.

Answers

Answer:

To find the radius of a ball that holds 66 cubic centimeters of air:

1. Substitute the given volume into the equation r= (3v/4π): r = (3*66/4π).

2. Simplify the equation: r = (198/4π).

3. Calculate the value of 4π: 4π = 12.57.

4. Divide 198 by 12.57: r = 15.75.

5. The radius of the ball that holds 66 cubic centimeters of air is 15.75 cm.

Answer:

Step-by-step explanation:

To find the radius of a sphere that holds 66 cubic centimeters of air, we can use the formula provided in the question:

r = (3v/4π)

where v is the volume of the sphere. We are given that the volume of the sphere is 66 cubic centimeters, so we can substitute this value into the formula:

r = (3 x 66) / (4 x π)

Simplifying this expression:

r = 198 / (4π)

Using a calculator to evaluate this expression:

r ≈ 15.8267

Therefore, the radius of the sphere that holds 66 cubic centimeters of air is approximately 15.8267 centimeters.

How do you find the lower quartile range?

Answers

Answer:

q1= n/4

is the formulato fine lower quartile

How to Convert 30x+120y=420 into y=mx+b form?

Answers

Answer:

y=-0.25x+3.5

Step-by-step explanation:

Ik this

Suzanna has $20. Candy bars
cost $0.50. How many candy
bars can she buy and still
have more than $7 left?

Answers

It’s 26 because if you change $.50 to one dollar then you have to subtract 13 to get seven left then you multiply by 2

Answer:

Step-by-step explanation:

Divide 20 by 0.50. This gets you 40 meaning she can buy 40 candy bars with her $20 if they are $0.50 each. In order to have $7 left over then she would buy 14 candy bars.

The budget for a project on voting trends includes $3200 for hiring undergraduateâ students, graduateâ students, and faculty members to conduct interviews on the day before an election. Each undergraduate student will conduct 30 interviews forâ $100. Each graduate student will conduct 32 interviews forâ $150. Each faculty member will conduct 33 interviews forâ $200. No more than 20 interviewers can be hired. How many of each type of interviewer should be hired in order to maximize the number ofâ interviews? What is the maximum number ofâ interviews?A)___undergraduateâ students, __ graduateâ students, and___ faculty members should be hired to maximize the number of interviews

Answers

By the help of inequality properties The maximum number of interviews is 644.

Let x = number of undergraduate students hired, y = number of graduate students hired, z = number of faculty members hired, n = number of interviews

The objective function is:

Maximize n = 30x + 32y + 33z

The constraints are:

x + y + z ≤ 20

100x + 150y + 200z ≤ 3200

x, y, z integers and ≥ 0 The solution is x = 0, y = 16, z = 4, n = 644

0 undergraduate students, 16 graduate students, and 4 faculty members should be hired to maximize the number of interviews. The maximum number of interviews is 644.

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Original Problem:

Solve the equation for x.
5³x-2 = 125²x

a. Solve using the change of
base formula:
Log by=log y/ log b

b. Solve using a different
method.

C. Verify your solution(s) by
substituting your value back
into the original equation.

Answers

The solution of the equation is,

⇒ x = - 2/3

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.

Given that;

The expression is,

⇒ 5³ˣ⁻² = 125²ˣ

a) Now, We can solve the expression by using change of base formula:

⇒ [tex]log_{b} y = \frac{log y}{log b}[/tex]

Hence, We get;

⇒ 5³ˣ⁻² = 125²ˣ

⇒ 5³ˣ⁻² = 5⁶ˣ

Take log both side we get;

⇒ log 5³ˣ⁻² = log 5⁶ˣ

⇒ (3x - 2) log 5 = 6x log 5

⇒ (3x - 2) = 6x

⇒ - 2 = 6x - 3x

⇒ - 2 = 3x

⇒ x = - 2/3

b) Solve for another method as;

⇒ 5³ˣ⁻² = 125²ˣ

⇒ 5³ˣ⁻² = 5⁶ˣ

By comparing,

⇒ 3x - 2 = 6x

⇒ 3x - 6x = 2

⇒ - 3x = 2

⇒ x = - 2/3

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Pablo received $200 dollars for his high school graduation. He wants to save his money to buy a new laptop that cost $700 for when he attends
college. Each month, he adds $125 to his laptop savings. Write an equation in slope intercept form for m, the number of months that it will take Pablo to save $700.

Answers

Let's call the number of months that it takes Pablo to save $700 as "m". The amount of money Pablo has saved after "m" months can be represented by the equation:

y = 200 + 125m

where y is the total amount of money saved after "m" months.

To find the number of months it will take Pablo to save $700, we can set y equal to $700 and solve for m:

700 = 200 + 125m

500 = 125m

m = 500 / 125 = 4

So it will take Pablo 4 months to save $700.

The equation in slope-intercept form is:

y = 125m + 200

where m is the number of months and y is the total amount of money saved. The slope of the line is 125, which represents the amount added to the savings each month, and the y-intercept is 200, which represents the initial amount of money Pablo received for graduation.

for each circle find the exact circumference in terms of pi 3mm 7mm

Answers

The AB intersects circle P if PA is 7mm and PB is 3mm it must exit the circle, and it has 2 contact points.

PA is longer than the radius of the circle so Point A must be outside of the circle.

What is the meaning of intersecting circles?

Two or more circles intersect at one point. Two circles can be tangent to each other in two different ways.

here, we have,

We have given that,

AB lies in the same plane as circle P, which has a radius of 6 mm.

PB is less than the radius of the circle so Point B must be inside the circle.

Since the ray is going from A to B it is coming inside the circle and continuing in the other direction.

Therefore, it must exit the circle, giving us 2 contact points.

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HURRY PLEASE!!!
You want to fill half of the green cylinder with MONEY!


How many cubic centimeters of MONEY will half of this cylinder hold?


1.1 meters = 110 cm


Don't put the comma in your answer.

Answers

The Cylinder can hold 138, 160 cm³.

What is Volume?

Each thing in three dimensions takes up some space. The volume of this area is what is being measured. The space occupied within an object's borders in three dimensions is referred to as its volume.

Given:

Height= 1.1 m = 110 cm

Radius= 20 cm

Now, Volume of Cylinder

= πr²h

= 3.14 x 20 x 20 x 110

= 3.14 x 44000

= 138, 160 cm³

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Round 1.587 to the hundredths
place.

Answers

Answer:

1.59

Step-by-step explanation:

Rounding to the hundredths has the same meaning as rounding to the second decimal place. Since the third decimal place is 7, we have to round up the decimal. Therefore the rounded value would be 1.59

I hope this makes sense to you. I am generally good with following up with additional questions. Feel free to leave a comment if you have any questions or you can also message me as well!

Write using positive exponents

x^3 * x^5

Answers

Answer: easy, the answer is x^6 (look at the image for the solution and make sure to give me brainliest)

Step-by-step explanation:

8x+12y=−96 into slope intercept from

Answers

Answer:





y = -(8/12)x - 8

Answer to all seven questions pls

Answers

1. 7
2. 2
3. 5
4. 3
5. 9
6. 11
7. 20

Answer:

1. 7 or S

2. 2 or E

3. 5 or A

4. 3 or I

5. 9 or the shaded-in letter

6. 11 or T

7. 20 or E

Step-by-step explanation:

1. 7 times 2 is 14, and 7 times 3 is 21

2. 2 times 5 is 10, and 2 times 6 is 12

3. 5 times 3 is 15, and 5 times 5 is 25

4. 3 times 2 is 6, and 3 times 5 is 15

5. 9 times 4 is 36, and 9 times 3 is 27

6. 11 times 2 is 22, and 11 times 3 is 33

7. 20 times 3 is 60, and 20 times 1 is 20.

Which rule describes the relationship between the x-and y- coordinates
on the following graph?
PLS ANSWER FAST

Answers

Answer:

The answer is B.

Step-by-step explanation:

Method #1 use point slope formula to solve for m of slope.

Method #2 Plug in x-values into option A or B to see you get your dots.

Find the next three terms in the following arithmetic sequence.

-4, 5, 14, 19 …

Answers

The next three terms in the following arithmetic sequence -4, 5, 14, 19 … include the following:

Term 5 = 32.

Term 6 = 41

Term 7 = 50

How to calculate an arithmetic sequence?

Mathematically, the nth term of an arithmetic sequence can be calculated by using this expression:

aₙ =  a₁ + (n - 1)d

Where:

d represents the common difference.a₁ represents the first term of an arithmetic sequence.n represents the total number of terms.

Next, we would determine the common difference as follows.

Common difference, d = a₂ - a₁

Common difference, d = 5 - (-4)

Common difference, d = 9

Next, we would determine the next three terms as follows:

a₅ = a₁ + (n - 1)d

a₅ = -4 + (5 - 1)9

a₅ = 32

a₆ = a₁ + (n - 1)d

a₆ = -4 + (6 - 1)9

a₆ = 41

a₇ = a₁ + (n - 1)d

a₇ = -4 + (7 - 1)9

a₇ = 50

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the standard deviation is a resistant measure of spread. t/f

Answers

True, the standard deviation is a resistant measure of spread.

The standard deviation is calculated as the square root of the variance of the data set. Variance is calculated as the average of the squared differences between each data point and the mean of the data set. The standard deviation is the square root of this average.

In mathematical terms, the standard deviation can be calculated using the following formula:

σ = √(1/n ∑(x - μ)²)

Where σ is the standard deviation, n is the number of data points in the data set, x is the value of the i-th data point, and μ is the mean of the data set.

The standard deviation is an important measure because it gives an idea of how much the individual values in a data set differ from the mean.

In summary, the standard deviation is a resistant measure of spread because it gives a robust measure of the spread of the data in a set and is not easily influenced by outliers or extreme values.

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The length of a rectangle is represented by the function L(x) = 2x. The width of that same rectangle is represented by the function W(x) = 8x2 − 4x + 1. Which of the following shows the area of the rectangle in terms of x?

(L + W)(x) = 8x2 − 2x + 1
(L + W)(x) = 8x2 − 6x + 1
(L ⋅ W)(x) = 16x3 − 4x + 1
(L ⋅ W)(x) = 16x3 − 8x2 + 2x

Answers

Answer:

Step-by-step explanation:

The area of a rectangle is given by the product of its length and width. Therefore, the area of the rectangle is:

A(x) = L(x) ⋅ W(x) = 2x(8x^2 - 4x + 1)

Simplifying the expression, we get:

A(x) = 16x^3 - 8x^2 + 2x

Therefore, the answer is (D) (L ⋅ W)(x) = 16x3 − 8x2 + 2x.

An initial deposit of $1200 is put into an account that earns 5% interest, compounded annually. Each year, an additional deposit of $1200 is added to the account.

Answers

Through the aid of future value If no withdrawals or new deposits are made, the account's value following the tenth deposit should be $15,093.47.

The implied value of an asset as of a particular date in the future based on a growth rate assumption is known as the Future Value (FV). This area of mathematics examines how random events happen. The value might be between 0 and 1. The mathematical idea of probability aids in predicting the possibility of specific events. In general, probability relates to how probable something is to happen. The interest rate assumption, or the rate of return on the initial amount of capital invested, or the present value, determines the projected future value (PV).

Calculation of the value:

The initial deposit is $1.200

The rate of interest is 5%

Now the future value be like

 [tex](1200\times\frac{(1+0.05)^9-1}{0.05} )\times(1+0.05)+1,200\\\\\(1200\times(\frac{1.5513-1}{0.05} )\times(1+0.05)+1,200\\\\(1200\times11.0265)\times(1.05)+1,200\\\\13893.4711+1,200\\$15,093.47[/tex]

Through the aid of future value If no withdrawals or new deposits are made, the account's value following the tenth deposit should be $15,093.47.

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How do you find the square root of 22 using heron's formula method?

(No spam for the points plss"

Answers

Answer:

we can't find it by herons formula. but here is your answer.....

Step-by-step explanation:

[tex]\\\sqrt{22}\\\\we can do by long division method \\ the actual value of \sqrt{22} = 4.69041575982343.\\well \sqrt{22} itself is in the simplest form[/tex]

PLEASE HELP. NEED ANSWER ASAP. CANT FAIL.

Answers

There are two imaginary roots and one real root of the equation

What is the root of an equation?

Generally, In mathematics, the root of an equation is a value that satisfies the equation. In other words, it is the value of the variable for which the equation is true. For example, in the equation x^2 - 4 = 0, the roots are +2 and -2, because when either of these values is substituted for x, the equation becomes true.

There are different methods for finding roots of an equation, depending on the type of equation. For example, some equations can be solved by factoring, while others require the use of more advanced techniques such as the quadratic formula or numerical methods like the Newton-Raphson method.

In general, finding the roots of an equation is an important task in mathematics and has many practical applications in fields such as engineering, physics, and finance.

The roots of the equation  are

x=-2,3+2 i, 3-2 i

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please help!! write a compound inequality

Answers

The compound inequality is x < 1 or x >= 3

How to determine compound inequality

From the question, we have the following parameters that can be used in our computation:

The number line

From the number line, we have the following readings

x is less than 1 (exclusive of 1)

x is greater than or equal to 3 (inclusive of 3)

Using the above as a guide, we have the following:

x < 1 or x >= 3

Hence, the solution is x < 1 or x >= 3

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