When a class took a math test, 15% of the class failed, 25% made some mistakes (but didn’t fail), and 24 students got perfect scores. How many students were in the class?

Answers

Answer 1
15%+25%=40%, meaning that 40% of the class didn’t get a perfect score and 60% did. If 24 students got a perfect score and 24 students is equal to 60% of the class, you can solve by setting up a proportion. 
24 students X students——————- = —————-60% of class 100% of class
Next, cross multiply to get 2400 = 60X. Divide both sides by 60 and you’ll get 40. There are 40 students in the class. 
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Answer 2
We can see that 24 people are forming 60% of the class, so the total class is 40

Related Questions

Rectangle ABCD is congruent to rectangle A"B"C"D" .

Which sequence of transformations could have been used to transform rectangle ABCD to produce ​ rectangle A"B"C"D" ​ ?

​A) Rectangle ABCD ​ was reflected across the y-axis and then across the x-axis.
​B) Rectangle ABCD ​ was translated 8 units left and then 7 units down.
​C) Rectangle ABCD ​ was rotated 180° around the origin and then translated 7 units down.
​D) Rectangle ABCD ​ was translated 2 units left and then 3 units down.

Answers

hello
the best answer is
b

Answer:

B

Step-by-step explanation:

Which counterexample shows that the conjecture "All animals that can fly are birds" is false?

Answers

It seems like you forgot to post the answer choices. However, bats are one animal where they can fly but they aren't birds. So this is one counter-example to prove the claim false. Another example would be any flying insects. 
B would be incorrect as it is not a counterexample to the claim. C would be incorrect as a chipmunk is not a bird. And D would be incorrect as the claim says "All animals that can fly are birds" it doesn't say "every bird" or "all birds can fly"
So A is the logical choice and according to what Jimthompson5910 said "bats are one animal where they can fly but they aren't birds."

A ramp has a rise of 10 feet and run of 50 feet find the slope

Answers

the slope of this is 1/5

The slope with the given rise and run is 1/5.

Given that, a ramp has a rise of 10 feet and a run of 50 feet.

We need to find the slope.

What is the slope?

The slope of the line is the ratio of the rise to the run, or rise divided by the run. It describes the steepness of a line in the coordinate plane. Calculating the slope of a line is similar to finding the slope between two different points. In general, to find the slope of a line, we need to have the values of any two different coordinates on the line.

Now, slope=rise/run

=10/50

=1/5

Therefore, the slope is 1/5.

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A real estate agent spends $79.95 each month for cell phone service. About how much money does the agent spend for 48 months

Answers

J. $4,000

He would be spending $3,837.60
J about 4,000
(Multiply 79.95 by 48)

Which point names the ordered pair (–5, –3)? A. Point A B. Point B C. Point C D. Point D

Answers

I am not 100% sure what you asked but maybe I would go with Point C?

The verticals of a parallelogram are G(-8,3), R(-7,6),A(-3,6), and M(-4,3). Graph GRAM and G’R’A’M’, it’s image after a translation 13 units right and 2 units up

Answers

See the attached diagram for a plot of the original vertices and their images.

The image of parallelogram GRAM, G'R'A'M', after a translation 13 units right and 2 units up is formed by the points G'(5, 5), R'(6, 8), A'(10, 8), and M'(9, 5).

To graph the parallelogram GRAM and its image G'R'A'M' after a translation 13 units right and 2 units up, follow these steps:

Plot the points G(-8,3), R(-7,6), A(-3,6), and M(-4,3) to form the parallelogram GRAM.

Calculate the new coordinates for G', R', A', and M' after the translation. You'll add 13 units to the x-coordinates (rightward) and 2 units to the y-coordinates (upward):

G'(-8 + 13, 3 + 2) = G'(5, 5)

R'(-7 + 13, 6 + 2) = R'(6, 8)

A'(-3 + 13, 6 + 2) = A'(10, 8)

M'(-4 + 13, 3 + 2) = M'(9, 5)

Plot the new points G'(5, 5), R'(6, 8), A'(10, 8), and M'(9, 5) to form the parallelogram G'R'A'M'. These points will be the image after the translation.

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the quotient of 300 and the quantity of x times 2

Answers

300/ 2x ( The dash represents the division symbol). Hope this helped God bless! :)

nelly bought a computer for $400. it was on sale for 20%. what was the original price?

Answers

$500

x*.8=400
divide .8 from both sides
x=500

Using the distributive property, which of the following expressions is equivalent to 5(3 + 5y)?

Answers

Your answer would be 15+25y

Answer:

15+25y

Step-by-step explanation:

I did this test!

have a great day:D

A teacher asked the class to solve the equation 3(times+2)= 21 Robert wrote 3 times + 6=21 as his first step. Which property did he use.

1. Associative property
2. Commutative property
3. Distributive Property
4. Zero property of addition

Answers

he used 3 distributive property :)

A circle flower garden has a radius of 4.5 feet. What is the circumference of the flower garden

Answers

Search it on google it instantly pops up as C = 28.27 ft

Henry is making a recipe for biscuits. A recipe calls for 5/10 kilogram flour and 9/100 kilogram sugar .





If Henry measures correctly and combines the two amounts , how much flour and sugar will we have

Answers

Answer:

5/10 + 9/100 = (50 + 90)/100 = 140/100

= 1.4 kilograms

A package of hot dogs cost $2 and a package of hamburger cost $8. You bought a total of 11 packages of meat and you spent $52. How many packages of hotdogs did you buy? Use a system to solve. 6 packages 4 packages 7 packages 5 packages

Answers

You bought 6 packages of hot dogs.

To solve this, you have to write and solve a system of equations. Let B stand for hamburgers and H stand for hot dogs.

B + H = 11
8B + 2H = 52     If you multiply the top equation by -2, you can solve by eliminatoin.


-2B + -2H = -22
8B + 2H = 52    Add the equations

6B = 30
B = 5

If you bought 5 packages of hamburgers, then you bought 6 packages of hot doges.  11 - 5 = 6

carl wants to buy a television that costs $500, including taxes. To pay for the television, he will use a payment plan that requires him to make a down payment of $125, and then pay $72.50 each month for 6 months. What is the percent increase from the original costs of the television to cost of the television using the payment plan?

Answers

The payment plan requires him to make a down payment of $125, and then pay $72.50 each month for 6 months. The total payment would be: $125 + 6*$72.50= $125 + $435= $560

The percent increase from the original costs would be:
($560-$500) / $500 * 100%= 12%

Answer:

($560-$500) / $500 * 100%= 12%

Step-by-step explanation:

Hope it helps

Best Answer gets brainliest, measurement isn't my cup of tea in math.

Answers

The answer is 24in^2
I believe it is 24 in squared, correct me if I'm wrong. <3

What are the dimensions of the rectangle shown below? Remember to use the axes on the coordinate grid to help you. 6 units × 4 units 8 units × 6 units 12 units × 8 units 18 units × 12 units

Answers

6 units hopefully this helpes <3

Answer:

6 units

Step-by-step explanation:


Complete the number sentence to solve. Enter the answer in simplest form. Two students share 3 granola bars equally. How many granola bars does each student get?

Answers

1 1/2 IS THE ANSWER TO YOUR LOVELY QUESTION

What is the approximate volume of the cylinder use 3.14 for TT

Answers

First we want to know the surface of the circle, which is
[tex]\pi {r}^{2} [/tex]
with r representing the radius. In this case
[tex]\pi \times {8}^{2} = [/tex]
[tex]64\pi[/tex]

To find the volume of the cylinder we have to multiply this outcome with the height.
[tex]64\pi \times 25 = [/tex]
[tex]64 \times 3.14 \times 25 = [/tex]
[tex]5024[/tex]
Hence, the volume of the cylinder is about 5024 cubic cm.

A restaurant buys a freezer in the shape of a rectangular prism. The dimensions of the freezer are shown. What is the volume of the freezer?

Dimensions- 36 in, 24 1/2 in, 72 1/2 in.

Please explain clearly how you got your answer

Answers

To answer this question you will use the formula for finding volume of a rectangular prism. V=lwh, where V stands for volume, l stands for the length, w stands for the width, and h stands for the height. What you are really doing is finding the area of the base of the rectangular prism by multiplying the length by the width. Once you have this you then multiply it by the height which takes you all the way through the prism to create the third dimension of volume. The answer is 63,945 cubic inches.

May painted 4 out of 8 equal parts of a poster board blue Jared painted 2out of 4 equal parts of a same size poster dosed red write traction’s to show which part of the poster board each person painted

Answers

1/2 and 1/2  so both are equal 

What expression is equivalent to the expression given below?

3/8 - 1/2y-5/6

:) 20 p0ints

Answers

Answer:

[tex]-\frac{1}{2}y-\frac{11}{24}[/tex]

Step-by-step explanation:

[tex]\frac{3}{8}\:-\:\frac{1}{2}y-\frac{5}{6}\\\\  =-\frac{1}{2}y+\frac{3}{8}-\frac{5}{6}\\\\  =-\frac{1}{2}y-\frac{11}{24}[/tex]

Hello!

Your answer is  -1/2y  -  11/24

Which would you measure in kilograms?
a. the mass of a butterfly
b. the capacity of a bottle
c. the mass of a basketball
d. the length of a river

Answers

The answer to this is C.The mass of a basketball. 

Final answer:

Mass of a basketball is measured in kilograms.

Explanation:

Mass is a measure of the amount of matter an object contains, and in this case, the mass of a basketball would be measured in kilograms.

Kilograms are the appropriate unit for measuring mass as they are based on the SI unit of mass, which is the kilogram.

Two parallel lines are cut by a transversal. Which statements are true for all such cases? Select three that apply.
A. Each pair of vertical angles is congruent.
B. Each pair of corresponding angles is congruent.
C. Each pair of supplementary angles is congruent.
D. Each pair of alternate interior angles is congruent.

Answers

All except for c

For c, if the pair of angles are supplementary and congruent, they can only be 90° because they are congruent ( meaning they are the same measurements) however this is not the case all the time


Hope this helps

The perimeter of a pentagon is 20t+7. Four sides have the following lengths: 6t, 2t, 4t-5, and 5t+1.What is the length of the fifth side?

Answers

The length of the fifth side is -59/3 units.

How to calculate the length?

The perimeter of a pentagon is the sum of the lengths of all five sides.

We know that the four sides have lengths of 6t, 2t, 4t-5, and 5t+1. Let's add these together:

6t + 2t + (4t-5) + (5t+1) = 17t - 4

We also know that the perimeter is equal to 20t+7. So we can set these two expressions equal to each other and solve for the fifth side:

17t - 4 = 20t + 7

Subtracting 17t from both sides, we get:

-4 = 3t + 7

Subtracting 7 from both sides, we get:

-11 = 3t

Dividing both sides by 3, we get:

-11/3 = t

Now that we know the value of t, we can find the length of the fifth side by substituting t back into one of the expressions for the sides. Let's use the expression for the third side, which is 4t-5:

4t - 5 = 4(-11/3) - 5 = -44/3 - 15/3 = -59/3

So the length of the fifth side is -59/3 units.

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The first step to solve the equation x/4 - 3/4 = 16 is shown below?

x/4 - 3/4 + 3/4 = 16 + 3/4

A.Addition Property of Equality
B.Subtraction Property of Equality
C.Multiplication Property of Equality
D.Division Property of Equality

Answers

i think it is A because that seems like the one making the most sense

Answer:

The first step to solve the equation Addition Property of Equality.

Step-by-step explanation:

Given the equation

[tex]\frac{x}{4}-\frac{3}{4}=16[/tex]

we have to find the first step to solve the above equation.

To solve the above equation we have to combine the like terms here we have to combine the constant terms.

[tex]\frac{x}{4}-\frac{3}{4}=16[/tex]

[tex]\text{Therefore, to solve the equation we have to add }\frac{3}{4}\text{ on both sides}[/tex]

[tex]\frac{x}{4}-\frac{3}{4}+\frac{3}{4}=16+\frac{3}{4}[/tex]

[tex]\frac{x}{4}=\frac{67}{4}[/tex]

[tex]x=67[/tex]

Hence, the first step to solve the equation is the

Addition Property of Equality  

See pic attached ... Urgent

Answers

Answer:

3) y = -1 + (1/2)x

This is a linear function.

4) y = 1.7(4^x)

This is an exponential function.

The length of a rectangle is 4 times its width. The area of the rectangle is 144 square inches. Find the dimensions of the rectangle

Answers

4w=l
4w*w=144
4w^2=144
w^2=38
w=6.16
l=4*6.16=24.63
(*there might be small rounding errors)
and they are both in inches

The width is 6 inches and the length is 24 inches.

To find the dimensions of the rectangle when given the area and the relationship between length and width, we will use algebra. Let the width be w inches. The length is 4 times the width, so the length is 4w inches. The area of the rectangle is w times the length (4w), which gives us w * 4w = 144 square inches. Simplifying, this equation becomes 4w^2 = 144 inches2. To find w, we divide both sides by 4, getting w^2 = 36. Taking the square root of 36 gives us w = 6 inches. Since the length is four times the width, the length is 24 inches. Therefore, the dimensions of the rectangle are 6 inches by 24 inches.

A shooting gallery game awards the player 2 points for hitting a stationary duck-target, and 3 points for hitting a moving duck-target. Escobar hit ten targets, and scored 23 points. How many stationary targets did he hit? How many moving targets did he hit?

Answers

m + s = 10 or s = 10 - m 
3m + 2s = 23 
substitute first equation into second equation: 
3m + 2(10 - m) = 23 
3m + 20 - 2m = 23 
m = 3 
using first equation: 
s = 10 - 3 = 7 
check using second equation: 
3(3) + 2(7) = 23 
9 + 14 = 23 checks 
He hit 7 stationary and 3 moving targets.

shannon uses 30 inches of ribbon to make one bow how many feet of ribbon are needed to make 10 bows

Answers

First, we need to calculate the amount of ribbon in inches, and then convert it into feet. 

Since 30 inches of ribbon is used in one bow, to make 10 bows, we need multiply:

30 x 10 = 300

Now, we need to convert the inches to feet.

300 in = 25 ft

Our answer is 25 ft of ribbon. 

Hope this helped!
Well you need to divide them then after that multiply the number you got from the 10 and 30 then subtract the number that you got from the 10 and 30. And then y'all get you answer.

In a bicycle store, $500 bicycle is marked get a "30% discount". What is the sale price of the bicycle?

Answers

your answer is 350$ 
30% times 500 is 150 
150 minus 500 is 350

The sale price of the bicycle in a store is $350.

What is a word problem?

A word problem is a verbal description of a problem situation. It consists of few sentences describing a 'real-life' scenario where a problem needs to be solved by way of a mathematical calculation.

For the given situation,

The marked price of bicycle = $500

Discount percentage = 30% = 0.30

Now, discount price = 500(0.30)

⇒ $150

The sale price of the bicycle can be found as

Sale price = Marked price - discount price

⇒ Sale price = 500 - 150

⇒ Sale price = $350

Hence we can conclude that the sale price of the bicycle in a store is $350.

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