Ratios and Proportions Study Guide

Carter is buying cupcakes for his class party. He purchased 36 cupcakes for $18.72. Which expression could Carter use to determine the cost of 1 cupcake?

• 36 ÷ $18.72

• $18.72 ÷ 36

• $18.72 * 36

• 36 * $18.72

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CCSS.6.NS.B.3

Emilee earned $81 dollars for working 6 ¾ hours. How much does she make per hour?

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CCSS.6.NS.B.3

Matt earned $52.50 for working 7 hours. How much did he earn per hour?

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

The costs of different sized jars of Grandma Betty’s Top Secret organic spaghetti sauce are listed below.

Which jar costs the least per ounce?

• 10 oz jar for $11.56

• 16 oz jar for $17.60

• 32 oz jar for $35.84

Tags

CCSS.6.RP.A.3B

Allen is comparing the prices of bananas from several different markets. Determine whether each market uses proportional or nonproportional pricing. CHOOSE THE SELECTIONS BELOW THAT ARE PROPORTIONAL

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CCSS.7.RP.A.2A

George has a box of pencils. In the box 315of the pencils have been sharpened. Circle the THREE ratios that are proportional to the fraction of sharpened pencils in George’s box.

• 1/3

• 1/5

• 5/25

• 30/6

• 6/30

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CCSS.7.RP.A.2A

The table shows the relationship between the wait time in minutes and the number of people in line. What is the constant of proportionality (unit rate)?

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CCSS.7.RP.A.2B

Determine whether the relationship between the two quantities to the right is proportional.

Choose the correct answer.

• Yes, because the graph of the line connecting the ordered pairs passes through the origin

• Yes, because the graph of the line connecting the ordered pairs does not pass through the origin

• No, because the graph of the line connecting the ordered pairs passes through the origin

• No, because the graph of the line connecting the ordered pairs does not pass through the origin

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CCSS.7.RP.A.2D

Kyle went hiking on his spring vacation. His time in hours and distance in miles is shown on the graph. What does the point (10, 12) represent?

• The unit rate is 12 miles per hour

• It took Kyle 12 hours to hike 10 miles

• In 10 hours Kyle hiked 12 miles.

• The unit rate is 10 miles per hour

Tags

CCSS.7.RP.A.2D

Allison was able to ride her bike 7.2 miles in 2 ¼ hours. At this rate, about how many miles would you expect her to travel in 4 hours?

• 6.4 hours

• 6.4 miles

• 13 hours

• 13 miles

Tags

CCSS.6.RP.A.3B