Ella will have 1.0 lbs of 50% syrup, 9.5 lbs of 5% syrup, 0.83 lbs of 75% syrup, and 33.5 lbs of 1.5% syrup
Calculatng lbs of syrupTo determine how much water Ella should add to make a specific concentration of syrup, you need to use the formula:
Syrup Concentration = (Mass of Sugar) / (Mass of Sugar + Mass of Water)
50% syrup: In this case, the syrup concentration is 0.50, so you can use the formula as follows:
0.50 = (0.5 lbs of sugar) / (0.5 lbs of sugar + Mass of Water)
Rearranging the formula, we get:
Mass of Water = (0.5 lbs of sugar) / 0.5 - 0.5 lbs of sugar
Mass of Water = 0.5 lbs
The total amount of syrup will be 0.5 lbs of sugar + 0.5 lbs of water = 1.0 lbs
5% syrup: In this case, the syrup concentration is 0.05, so you can use the formula as follows:
0.05 = (0.5 lbs of sugar) / (0.5 lbs of sugar + Mass of Water)
Rearranging the formula, we get:
Mass of Water = (0.5 lbs of sugar) / 0.05 - 0.5 lbs of sugar
Mass of Water = 9 lbs
The total amount of syrup will be 0.5 lbs of sugar + 9 lbs of water = 9.5 lbs
75% syrup: In this case, the syrup concentration is 0.75, so you can use the formula as follows:
0.75 = (0.5 lbs of sugar) / (0.5 lbs of sugar + Mass of Water)
Rearranging the formula, we get:
Mass of Water = (0.5 lbs of sugar) / 0.75 - 0.5 lbs of sugar
Mass of Water = 0.33 lbs
The total amount of syrup will be 0.5 lbs of sugar + 0.33 lbs of water = 0.83 lbs
1.5% syrup: In this case, the syrup concentration is 0.015, so you can use the formula as follows:
0.015 = (0.5 lbs of sugar) / (0.5 lbs of sugar + Mass of Water)
Rearranging the formula, we get:
Mass of Water = (0.5 lbs of sugar) / 0.015 - 0.5 lbs of sugar
Mass of Water = 33 lbs
The total amount of syrup will be 0.5 lbs of sugar + 33 lbs of water = 33.5 lbs
So, to summarize, Ella will have 1.0 lbs of 50% syrup, 9.5 lbs of 5% syrup, 0.83 lbs of 75% syrup, and 33.5 lbs of 1.5% syrup.
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Answer:
Step-by-step explanation:
Ella will have 1.0 lbs of 50% syrup, 9.5 lbs of 5% syrup, 0.83 lbs of 75% syrup, and 33.5 lbs of 1.5% syrup
Calculatng lbs of syrup
To determine how much water Ella should add to make a specific concentration of syrup, you need to use the formula:
Syrup Concentration = (Mass of Sugar) / (Mass of Sugar + Mass of Water)
50% syrup: In this case, the syrup concentration is 0.50, so you can use the formula as follows:
0.50 = (0.5 lbs of sugar) / (0.5 lbs of sugar + Mass of Water)
Rearranging the formula, we get:
Mass of Water = (0.5 lbs of sugar) / 0.5 - 0.5 lbs of sugar
Mass of Water = 0.5 lbs
The total amount of syrup will be 0.5 lbs of sugar + 0.5 lbs of water = 1.0 lbs
5% syrup: In this case, the syrup concentration is 0.05, so you can use the formula as follows:
0.05 = (0.5 lbs of sugar) / (0.5 lbs of sugar + Mass of Water)
Rearranging the formula, we get:
Mass of Water = (0.5 lbs of sugar) / 0.05 - 0.5 lbs of sugar
Mass of Water = 9 lbs
The total amount of syrup will be 0.5 lbs of sugar + 9 lbs of water = 9.5 lbs
75% syrup: In this case, the syrup concentration is 0.75, so you can use the formula as follows:
0.75 = (0.5 lbs of sugar) / (0.5 lbs of sugar + Mass of Water)
Rearranging the formula, we get:
Mass of Water = (0.5 lbs of sugar) / 0.75 - 0.5 lbs of sugar
Mass of Water = 0.33 lbs
The total amount of syrup will be 0.5 lbs of sugar + 0.33 lbs of water = 0.83 lbs
1.5% syrup: In this case, the syrup concentration is 0.015, so you can use the formula as follows:
0.015 = (0.5 lbs of sugar) / (0.5 lbs of sugar + Mass of Water)
Rearranging the formula, we get:
Mass of Water = (0.5 lbs of sugar) / 0.015 - 0.5 lbs of sugar
Mass of Water = 33 lbs
The total amount of syrup will be 0.5 lbs of sugar + 33 lbs of water = 33.5 lbs
So, to summarize, Ella will have 1.0 lbs of 50% syrup, 9.5 lbs of 5% syrup, 0.83 lbs of 75% syrup, and 33.5 lbs of 1.5% syrup.
The figure shows a collision between three balls of clay. The three hit simultaneously and stick together. What are the speed and direction of the resulting blob of clay?
The speed and the direction of the resulting blob of clay is 1.4m/s and 57.46 deg below +ve x-axis respectively.
What are vectors?The Latin word for carrier is vector. Points A and B are transported by vectors. The magnitude of the vector is the length of the line connecting points A and B, and the vector's direction is the direction in which point A moves in relation to point B. Other names for vectors are Euclidean vectors and spatial vectors. In many different domains, including mathematics, physics, engineering, and others, vectors are used.
Since there is no external force applied, So using momentum conservation:
Pi = Pf
Since the wreckage is locked onto each other after collision, So their final velocity will be same
m1*v1 + m2*v2 + m3*v3 = (m1 + m2 + m3)*V
m1 = mass of ball1 = 60 g
m2 = mass of ball2 = 20 g
m3 = mass of ball3 = 30 g
v1 = initial velocity of m1 = 4.0 m/sec towards 45 deg South of east = (4*cos(45deg) i - 4*sin(45 deg) j) m/sec
v2 = initial velocity of m2 = 2.0 m/sec towards North = (2.0 j) m/sec
v3 = initial velocity of m3 = 2.9 m/sec towards west = (-2.9 i) m/sec
V = final velocity of blob = x i + y j
So,
60*(4*cos(45deg) i - 4*sin(45 deg) j) + 20*(2.0 j) + 30*(-2.9 i) = (60+20+30)*(x i + y j)
(60*2.83 - 30*2.9) i + (-60*2.83 + 20*2.0) j = 110x i + 110 j
82.8 i - 129.8 j = 110x i + 110y j
By comparing both sides:
x = 82.8/110 = 0.753 i
y = -129.8/110 = -1.18 j
then, final speed will be:
V = 0.753 i - 1.18 j
Part - A
Speed of resulting blob of clay,
|V| = √((0.753)² + (1.18)²)
|V| = 1.4 m/s
Part-B
Direction after collision will be:
Direction = arctan (Vy/Vx) = arctan (-1.18/0.753) = -57.46 deg
Direction = 57.46 deg below +ve x-axis
Hence, the speed and the direction of the resulting blob of clay is 1.4m/s and 57.46 deg below +ve x-axis respectively.
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One common system for computing a grade point average (GPA) assigns 4 points to an A, 3 points to a B, 2 points to a C, 1 point to a D, and 0 points to an F. What is the GPA of a student who gets an A in a 3-credit course, a B in each of two 2-credit courses, a C in a 4-credit course, and a D in a 3-credit course?
The mean grade point score is
Round to the nearest tenth as needed.)
As stated in the preceding statement When 4 points are given in one method for calculating grade point averages (GPA), the resulting mean grade rating is 3.41.
How can we determine the average?Average While calculating the arithmetic mean, a group of integers is added, their count is divided, and the result is then taken. For instance, the average of 2, 3, 5, 7, and 10 is 5, this is the result of 30 reduced by 6.
The quality points by each grade every course must first be calculated before being added together to determine the GPA.
3 credit hours times 4 points for A equals 12 quality points.
B - ( 3 points x 2 credit hours ) x 2 (because there are 2 courses) = 18 quality points
C - 2 points x 4 credits = 8 quality points
D - 1 point x 3 credits = 3 quality points
Now add up all the quality points = 12 + 18 + 8 + 3 = 41
Add the credit hours as well = 3 + 2 + 4 + 3 = 12
Divide the total kit by total semester credit to calculate the GPA = 41/12 = 3.41
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solve it please it's a math questions
Using the principle of alternate angles we can say that the value of x will be 120°.
What are Alternate angles?The intersection of two parallel lines by a transversal produces alternate angles.
The alternate angles are equivalent when a transversal cuts two parallel lines.
The total of all the angles created on a transverse that are inside either of the two parallel lines is always 180 degrees.
Alternate interior angles for non-parallel lines don't have any special characteristics.
Angles of the same size that are found on opposing sides of the transversal line are known as alternate angles.
So, do not observe the given image:
We know that it is the pair of alternate angles that is equal.
Then, x = 120°.
Therefore, using the principle of alternate angles we can say that the value of x will be 120°.
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Find a vector equation and parametric equations for the line. (Use the parameter t.)
a) The line through the point (1,0,7) and perpendicular to the plane x + 3y + z = 2.
b) The line through the point (3, 2.3, 3.6) and parallel to the vector 3i + 3j - k.
a. The vector equation for the given line is (x,y,z) = (1,0,7) + t(1,3,1) and the parametric equations are x = 1+t, y = 3t, z = 6+t.
b. The vector equation for the given line is
(3 + 3t)i + (2.3 + 3t)j + (3.6 - t)k and the parametric equation is
x = 3 + 3t, y = 2.3 + 3t, z = 3.6 - t.
What is a parametric equation?
A series of equations known as a parametric equation specifies a point's location in the xy plane in terms of a third variable, which is typically referred to as a parameter.
a. We are given that a line passes through the point (1,0,7) and is perpendicular to the plane x + 3y + z = 2.
Now, since the line is perpendicular to the plane, the normal vector (1,3,1) for the plane is parallel to the line.
So the vector equation for the line is
(x,y,z) = (1,0,7) + t(1,3,1)
The parametric equations for the line are
x = 1+t, y = 3t, z = 6+t
b. We are given that a line passes through the point (3, 2.3, 3.6) and parallel to the vector 3i + 3j - k.
So the vector equation "r" for the line is
r = (3i + 2.3j + 3.6k) + t(3i + 3j - k)
r = (3 + 3t)i + (2.3 + 3t)j + (3.6 - t)k
The parametric equations for the line are
x = 3 + 3t, y = 2.3 + 3t, z = 3.6 - t
Hence, the required vector and parametric equations have been obtained.
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Why does a reflection make my phone look like theres a scratch when there is none on my phone? answer asap for vrainlist
Do u have a screen protector cuz if u do thats probably why
Step-by-step explanation:
Answer:
light diffraction and a dirty phone screen.
Escribe cada número decimal como fracción número mixto y en palabras.
1. 0.9
2. 0.09
3. 0.731
4. 1.371
5. 0.0005
La condición para convertir una fracción impropia en una fracción mixta es que el denominador sea menor que el numerador. de modo que en esta pregunta solo (4) se puede cambiar a una fracción mixta.
El número 4 se cambia a una fracción mixta se convierte en:
1 372/1000
Cómo convertir fracciones impropias a números mixtosUna Fracción Ordinaria cuyo cuantificador es menor que el denominador no se puede convertir en una Fracción Mixta.
Entonces, de los números 1-5, solo el número 4 se puede convertir en una fracción mixta.
4)
Convertido a fracciones comunes se convierte en 1371/1000
Convertido a un número mixto se convierte en 1 371/1000
léase uno - trescientos setenta y uno - por mil.
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Question 1 of 10
If AABC= ADBC, then BC bisects the angle ZACD.
OA. True
OB. False
D
SUBMIT
Answer the questions below
Δ BAD and Δ CAD are congruent by SAS rule.
What is congruency?In geometry, two figures or objects are congruent if they have the same shape and size, or if one has the same shape and size as the mirror image of the other.
Given that, in a Δ BAC, AD bisects ∠ BAC, AB = AC,
We need to prove, BD = DC
STATEMENT REASON
1) AD bisects ∠ BAC given
2) ∠ 1 = ∠ 2 definition of angle bisector
3) AB = AC given
4) AD = AD Reflexive property
5) Δ BAD ≅ Δ CAD SAS rule
Hence, Δ BAD and Δ CAD are congruent by SAS rule.
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What quadrant is the point (2,-3) in
Mr. Santos, the curator of the children’s museum, recently made two purchases of clay and wood for a visiting artist to sculpt. Use the table to find the cost of each product per kilogram
The cost per kg of clay is $0.7 and cost per kg of wood is $ 8.
Linear Equation in two variables:
An equation is said to be linear equation in two variables if it is written in the form of ax + by + c=0, where a, b & c are real numbers and the coefficients of x and y, i.e a and b respectively, are not equal to zero.
Now according to the given question,
Let cost per kg of clay be x and cost per kg of wood be y.
Then according to the given information in table, we can get two equations,
5x + 4y = 35.50 .....(1)
3.5x + 6y = 50.45 .....(2)
Now multiply equation (1) by 3 and equation (2) by 2, we get,
15x + 12y = 106.50 ......(3)
7x + 12y = 100.90 ......(4)
Now subtract equation (4) by equation (3), we get,
8x = 5.60
x = 0.7
Now put this value of x in (1),
we get,
5(0.7) + 4y = 35.5
3.5 + 4y = 35.5
subtracting both sides by 3.5, we get
4y = 32
by dividing both sides by 4, we have
y = 8
Therefore, cost per kg of clay is $0.7
and cost per kg of wood is $ 8.
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Solve the system of equations below. You may want to use the method by substitution starting with the second equation.
3x−2y
=34
5x+10y
=−10
Answer:
(8,-5)
x=8
y=-5
Step-by-step explanation:
In Exercises 1 and 2, determine which matrices are in reduced echelon form and which others are only in echelon form.a. 1 1 0 10 0 1 10 0 0 0b. 1 1 0 00 1 1 00 0 1 1c. 1 0 0 01 1 0 00 1 1 00 0 1 1d. 0 1 1 1 10 0 2 2 20 0 0 0 30 0 0 0 0
In the given exercise option a, b and c are in reduced echelon form and option d is in echelon form.
What is echelon form and reduced echelon form?Row echelon form suggests that: Each row's leading (first) entry must be
Each following row's first entry must be on a new column to the right.
All rows with zero entries are listed below rows with non-zero items.
If the leading entry in each column is the only nonzero element in that column, reduced echelon form also results from echelon form conditions.
According to the definitions we see that, in the given exercise option a, b and c are in reduced echelon form and option d is in echelon form.
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What is the last one?
The value of the last one is 18.
How to solve equation?The solution of the diagram can be modelled with an equation. Therefore, let's find the last value.
we will use variable to represent the fruit names.
Hence,
yellow fruit = x
red fruit = y
green fruit = z
Therefore,
x + y + z = 29
2y + z = 26
2z + y = 25
Using substitution,
y = 25 - 2z
2(25 - 2z) + z = 26
50 - 4z + z = 26
50 - 3z = 26
-3z = 26 - 50
-3z = -24
z = 8
y = 25 - 2(8)
y = 25 - 16
y = 9
Therefore,
x + 9 + 8 = 29
x = 29 - 17
x = 12
Finally,
x + 1 / 2x = 12 + 1 / 2(12) = 12 + 6 = 18
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6, Jason and David are having a competition to see who can earn the most money in one month. Jason works as a server at Buffalo Wild Wings and averages 18% tips of each table he serves. Each week his total average sales are $2100. David works at Kohl's and earns a weekly salary of $185, as well as 6% commission on whatever he sells. David's average weekly sales total $3500. Who makes more money in one month?
Answer: First, let's calculate Jason's weekly earnings:
Jason's weekly tips = $2100 * 18% = $378
Jason's total weekly earnings = $2100 + $378 = $2478
Next, let's calculate David's weekly earnings:
David's weekly commission = $3500 * 6% = $210
David's total weekly earnings = $185 + $210 = $395
To find the monthly earnings, we need to multiply their weekly earnings by 4 (since there are 4 weeks in a month):
Jason's monthly earnings = $2478 * 4 = $9912
David's monthly earnings = $395 * 4 = $1580
So, Jason makes more money in one month, earning approximately $9912, compared to David's $1580.
Step-by-step explanation:
The individual who makes more money in a month between Jason and David is David.
Who makes more money in one month?Jason's weekly tips = 18% of $2100
= $378
David weekly salary= $185
David's weekly tips = 6% of $3400
= $210
Total weekly salary of David = $185 + $210
= $395
Total monthly salary of Jason= $378 × 4
= $1,512
Total monthly salary of David= $395 × 4
= $1,580
Therefore, David makes more money than Jason in a week.
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Six oranges cost R18,00. how much will 5 oranges and 15 oranges cost?
The costs of 5 oranges and 15 oranges are R15 and R45
How to determine the costsFrom the question, we have the following parameters that can be used in our computation:
Six oranges cost R18,00
This means that the unit rate is
Unit rate = R18,00/6 = R3.00
For 5 oranges, we have
Cost = 5 * R3.00 = R15.00
For 15 oranges, we have
Cost = 15 * R3.00 = R45.00
So, the costs are R15.00 and R45.00
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Find the x-intercept and the y-intercept of x-1=0. Then graph the equation.
Answer:
Step-by-step explanation:
1. the variable 'y' is absent in the equation given in the condition. It means, the given line is vertical. Then
2. if line is vertical, it is parallel to Y-axis, then no y-interception.
3. if to re-write the given equation into x=1, then x-interception is x=1.
4. graph is in the attachment.
Find the length of side x.
Give your answer to 1 decimal place.
13 cm
98°
X
17 cm
The value of the x is 19.9.
What is the Law of Cosines?A planar triangle's side's square is equal to the sum of the squares of the other sides minus the product of those sides and the cosine of the angle between them, divided by two.
Given:
The angle C is 98°.
Applying law of cosines:
c² = a² + b² -2ab cosC.
Substituting the values,
c² = (17)² + (13)² -2(17)(13) cos98°.
c² = 458 - (-0.13917)442
c² = 396.48686
c = 19.9
Hence, x = 19.9.
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1/2 (x+8) -:xy +z when x=4 y=12 and z=-40
The solution is, the value we get 3:4.
What is ratio?The ratio is defined as the comparison of two quantities of the same units that indicates how much of one quantity is present in the other quantity.
here, we have,
given that,
1/2 (x+8) -:xy +z
when x=4 y=12 and z=-40
so, we get,
1/2*12 : 48+ (-40)
=6:8
=3:4
Hence, The solution is, the value we get 3:4.
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i need this by today please
A woman 6 ft tall is standing near a street lamp that is 13 ft tall, as shown in the figure. Find a function that models the length L of her shadow in terms of her distance d from the base of the lamp.
Answer:
Step-by-step explanation:
We can use similar triangles to find the function that models the length of the woman's shadow. If the woman is standing at a distance d from the base of the lamp, the length of her shadow will be proportional to her height, so the ratio of the shadow length to the height will be equal to the ratio of the distance from the base of the lamp to the height of the lamp.
So, if h is the woman's height and L is the length of her shadow, we have:
L/h = d/13
And since h = 6 feet, we can write:
L = (d/13) * 6
So the function that models the length of the woman's shadow in terms of her distance from the base of the lamp is:
L = (d/13) * 6
What did Nixon's visit to China prove to the US?
A. If you can deal with one communist nation, others will likely join in
B. The Soviet Union was close to falling apart and communism would leave Eastern Europe
C. Most communist nations actually practice capitalism and have free elections
D. The communist world was not a single entity, and had many different positions
According to the information, it can be inferred that US President Nixon's visit to China proved that the communist world was not a single entity and had many different positions.
What was Nixon's visit to China?The visit of the President of the United States Richard Nixon to the People's Republic of China is an important event in the political and foreign relations sphere of the United States because it was a way to establish a formal relationship between the United States and the People's Republic of China.
This was significant because it was the first time a US President had visited the PRC, who at the time considered the US one of his main enemies. Additionally, this allowed him to verify to the other states that there were different ways of proposing communism. In this case, Chinese communist thought was moderated, so the relationship with the United States was allowed.
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25. Mr. Polar Bear asks if dilations will result in similar figures that differ by a scale factor.
Do you tell him "yes" or "no"?.
Answer:
Yes
Step-by-step explanation:
Dilations shrink or expand a figure. If the scale factor is one, the two figures will be identical.
A CFL player has an annual salary of $305,000. The player donates 1/8 of his salary to charity. What amount is this?
Answer:
The player has an annual salary of $305,000, and they have decided to donate 1/8 of their salary to charity. To calculate this, we simply divide their salary by 8.
305,000 / 8 = $38,125
So, the player is donating $38,125 to charity every year. This is calculated by taking 1/8 of their annual salary.
The fraction 1/8 represents one out of eight equal parts of the player's salary, and when this fraction is multiplied by the player's salary, it gives the exact amount that they are donating to charity.
Quadra gets £120 for her birthday.She spends 3/4 and saves the rest.How much does she save?
To find out how much Quadra spent, we can use this equation:
Total amount of money × fraction spent = amount leftFitting the numbers into the equation would look like this:
£120 × 0.75 = £90Why do we multiply by 0.75?We multiply by 0.75 because it is equivalent to 3/4.
If we now know that Quadra spent £90, we can subtract that from her total amount of money to get the amount of money she saved.
£120 - £90 = £30Therefore, Quadra saved £30.
A national diet company markets a special diet plan which requires dieters to use frozen meals prepared by the company. The company advertises that those who follow their plan for 10 weeks will lose, on the average, at least 10 lbs. A consumer group is suspicious of this claim, believing that the weight lose is, on average, much less. If m represents the mean weight loss the population of all American adults would experience after 10 weeks on the plan, what is the appropriate alternative hypothesis that the consumer group wishes to test?a. Ha: mu < 10 b. Ha: mu > 10 c. Ha: mu (notequal)10 d. Ha: mu (notequal) 0
Ha:mu<10 is the appropriate alternative hypothesis that the consumer group wishes to test .
How would you define hypothesis?
An assumption or notion is called a hypothesis when it is put forth with the purpose of debating whether it might be true.
In the scientific process, the hypothesis is developed prior to the completion of any relevant study, other than a brief background review.
Ha:mu<10
Because A consumer group is suspicious of this claim, believing that the weight lose is, on average, much less.
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bonnie wrote 2 fractions that are equivalent to 1/3.Are bonnie's equivalent fractions which are 2/6 and 3/12 correct?
A man holds a note of $4,000 that has an interest rate of 12% annually. The note was made on March 16 and is due November 14. He sells the note to a bank on June 11 at a discount rate of 11% annually. Find the proceeds on the third-party discount note. (Use the banker's rule.)
The proceeds (discounted value) on the third-party discount note are $4,116.90.
What is the discounted value of a note?The discounted value of a note is a value that is less than the maturity value.
The maturity value is the face value of the note plus the accumulated interest.
Face value of the note receivable = $4,000
Annual interest rate = 12%
Note issuance date = March 16
Note due date = November 14
The total number of days = 243 days
Discount date = June 11
Discount rate = 11%
March 16 to June 11 = 87 days
Interest on the note = $320 ($4,000 x 243/365 x 0.12)
Maturity value = $4,320 ($4,000 + $320)
Discount period = 156 days (243 - 87)
Discount on the note = $203.10 ($4,320 x 156/365 x 11%)
Discounted value = $4,116.90 ($4,320 - $203.10)
Thus, the man, who holds a note of $4,000 at 12% interest but sells it at a discount rate of 11%, will receive $4,116.90.
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graph this equation on the graph then, use the check step to prove the solution works in both equations. show all work
y = -1/2x + 3
y = 5
check:
The solution that works for both the equations is (-4, 5) and the two lines intersect at this point.
What is system of equations?A system of equations in algebra consists of two or more equations and looks for common answers to the equations. "A set of equations satisfied by the same set of variables is called a system of linear equations."
The given equation are:
y = -1/2x + 3
y = 5
Substitute the value of y in first equation:
5 = -1/2x + 3
5 = -x + 6 / 2
10 = -x + 6
10 - 6 = -x
x = -4
The solution that works for both the equations is (-4, 5) and the two lines intersect at this point.
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Drag each tile to the correct box.
Sequence the steps that an accountant generally follows to prepare a bank reconciliation statement.
there supposed to go in order
The steps that an accountant generally follows to prepare a bank reconciliation statement will be:
Compare the bank statement and the checkbook records to look for differences (if any).Look for outstanding checks paid by the company, but not yet paid by the bank.Look for debit and credit memoranda and make adjustments in the checkbook balance.Look for deposits to look for any deposit missed by either the company or the bank.Post journal entries to make adjustments in the company's records.What is a bank reconciliation statement?A company's prepared bank reconciliation statement demonstrates that the balance of its recorded bank account matches the balance the bank lists.
This report comprises every transaction from a specific time period, including deposits and withdrawals.
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the makers of skittles claim that 20% of skittles candies are orange. suppose this claim is true. you select a random sample of 30 skittles from a large bag. let the proportion of orange skittles in the sample.
The sample size that required to reduce the standard deviation of the sampling distribution to one-half that standard deviation (0.073) is 120.
As per the data given:
The makers of skittles claim that 20% of skittles candies are orange.
20 % = 0.20
Select a random sample of 30 skittles from a large bag.
[tex]\hat p[/tex] = the proportion of orange skittles in the sample.
The standard deviation of the sampling distribution of [tex]\hat p[/tex] = 0.073
The Standard deviation of the Sampling distribution was reduced to [tex]$= \frac{1}{2} \sigma_{\hat{p}}$[/tex].
[tex]$ \sigma_{\hat p}=\sqrt{\frac{p(1-p)}{n}}=0.073$[/tex]
Divide both sides by 2
We get:
[tex]$\sqrt{\frac{p(1-p)}{n}}=\frac{0.073}{2}[/tex]............... (1)
Now it should become be one - half.
Let [tex]$n_1[/tex] be the new sample size.
[tex]$\sqrt{\frac{p(1-p)}{n_1}}=\frac{0.073}{2}[/tex] ..................2
From (1) and (2) RHS of both equations is equal.
Then equate both equations
[tex]$\frac{1}{2} \sqrt{\frac{p(1-p)}{n}}=\sqrt{\frac{p(1-p)}{n_1}}$[/tex]
Squaring on both sides
We get:
[tex]$\Rightarrow\left(\frac{1}{2}\right)^2 \frac{p(1-p)}{n}=\frac{p(1-p)}{n_1}\end{aligned}$[/tex]
[tex]$\Rightarrow \frac{1}{4 n}=\frac{1}{n_1}$[/tex]
[tex]$\Rightarrow n_1=4 n$[/tex]
[tex]$n_1-[/tex] The new sample size required = 4n
n-The old sample size.
The sample size that required = 4n
= 4 (30)
= 120
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The makers of skittles claim that 20% of skittles candies are orange. Suppose this claim is true. You select a random sample of 30 skittles from a large bag. Let p-hat = the proportion of orange skittles in the sample. The standard deviation of the sampling distribution of p-hat = .073
What sample size would be required to reduce the standard deviation of the sampling distribution to one-half that standard deviation (.073)