UNIT THREE REVIEW QUESTIONS

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n = 12

In the following proportion, what is the value of n?

=

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Cross multiply and solve for n.Hint? Click Here

B

Which of the following is not equivalent to 15%?

A. 0.15

B. 0.015

C.

D.

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Convert each choice into a percentHint? Click Here

3:1

If there are 10 girls and 30 boys in Mr. Green’s math class, what is the ratio of boys to girls written in lowest terms?

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$ 0.20

You can buy boxes containing 25 individually wrapped cupcakes for $5. What is the unit rate for the cupcakes?

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50 What number is 50% of 100?

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Use the is over of formulaHint? Click Here

$18.20

At GameStop, you buy a video game priced at $30. There is a sales tax rate of 6%. What is your change if you pay with a $50 bill?

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Find what the tax would be on the game and add that amount to $30. Subtract the tax and game amount from $50.

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What would 2 % equal as a fraction in simplest terms?

1

40After you have completed your work, click here for the answer.

Use your calculator to convert the percent to a fractionHint? Click Here

y = 9After you have completed your work, click here for the answer.

Set up a proportion and solve for y.Hint? Click Here

40 feet

On a scale drawing, the scale used is 3 cm = 10 feet. On the drawing a kitchen is 12 cm long. Find the length of the actual kitchen?

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Set up a proportion with cm on the top and feet on the bottomand solve for missing length.

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20%

What percent tip did you leave at Ruby Tuesday if your bill totaled $30, and you paid a total of $36?

 

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Use the difference divided bythe original times 100 formula Hint? Click Here

25% increase

What is the percent of increase if the price of grapes goes from $1.40 a pound

to $1.75 a pound?

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8 cookies

If Brenda can eat 5 cookies in 10 minutes, how many cookies could she eat in 16 minutes?

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Set up a proportion comparing cookiesand minutes, use a variable to represent thenumber of cookies. Cross multiply and solvefor the variable.

Hint? Click Here

Yes, they are equivalent fractions A certain shade of orange requires 3 parts

yellow to 6 parts red. If you mix 30 quarts of yellow with 60 quarts of red, will you get the desired shade of orange?

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Set up a proportion and compare the two fractionsHint? Click Here

70%

The Flyers won 35 games and lost 15. What percent of the total games did they win?

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Use the is over of formulaHint? Click Here

216 mm

In two similar rectangles, the width of the smaller rectangle is 6 mm long. The width of the larger rectangle is 36 mm. If the smaller rectangle’s length is 12 mm long, what is the perimeter of the larger rectangle?

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Perimeter = 2(L) + 2 (W).Hint? Click Here

$5100.00

You borrow $5000 for a used car at 4% simple annual interest. You make no payments for 6 months. How much do you owe after 6 months?

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• Use 0.5 for the six months• I = prtHint? Click Here

Month payment of $373.33 You borrow $2000 from the bank. The

bank charges 8% interest. If you are planning to pay back this loan in two years, what would be your monthly payment?  

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I = prtThere are 24 months in two yearsHint? Click Here

80 rides

Hershey Park begins its season with 50% of its amusement park rides open. There are 40 rides open at the start of the season. How many rides does Hershey Park have?

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1 inch = 6 feet

While working on a model of a airplane, you see that on the model, the wing is 10 inches long. If the actual wing is 60 feet long, what is the scale used (in simplest form)? 

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Set up a proportion and solve for themissing length.Hint? Click Here

$37.50

You see a sweater at Kohl’s that is on sale for 25% off. What will you have to pay if the sweater originally was $50.00?

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5 feet tall

While standing in the sunlight, a woman casts a 12 foot shadow. In the same sunlight, a 20 foot tall pole casts a 30 foot shadow. Using similar triangles, how tall is the woman?

 

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You have reached the end of the questions!

Good luck on the test!