5.2 Practice A

Name____________________________________________________________Date___________

Write a rate that represents the situation.

1. 50 candles in 4 boxes 2. 6 miles in 7 minutes

3. $25 in 10 minutes 4. 52 students in 3 classrooms

5. 5 pounds in 3 months 6. 4 days for $350

7. 10 kilograms in 9 cans 8. 87 strokes in 18 holes

Write a unit rate for the situation.

9. $44 in 4 days 10. 12 haircuts in 4 hours

11. 256 heartbeats in 4 minutes 12. 15 liters in 3 minutes

13. 12 cans for 6 people 14. 27 outs in 9 innings

15. 85 drops in 5 minutes 16. 36 children from 12 families

Decide whether the rates are equivalent.

17. 18.

19. Describe and correct the error in writing the unit rate of gallons per hour.

20. You receive 9 text messages in 12 minutes. What is the rate of text messages per hour?

21. You studied for 14 hours last week. What was your unit rate of hours of study per day?

22. In a walk for charity, you walk at a rate of 100 meters per minute. How long does it take you to walk 2 kilometers?

23. A deli sells a sandwich spread for $6.40 per pound. How much do you have to pay for 24 ounces of the spread?

24. You can buy 3 sandwiches for $4.95 or 4 sandwiches for $6.72. Which is the better buy?

25. You can buy 20 ounces of cereal for $4.40 or 16 ounces of the same brand for $3.68. Which is the better buy?

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70 gallons 14 gallons

5 minutes 1 hour

5

5

5.2 Practice B5.2 Practice

Name____________________________________________________________Date___________

Write a rate that represents the situation. Then write a unit rate for the situation.

1. 6 kittens in 3 boxes 2. $96 for 16 hours of work

3. 72 biscuits from 9 batches 4. 1800 revolutions in 50 seconds

Decide whether the rates are equivalent.

5. 6.

Decide which is the better buy.

7. 8.

9. 10.

11. An aquarium is leaking water at a rate of three quarts per day. How many fluid ounces of water is this each hour?

12. A glacier flows at a rate of 20 meters per day. What is the flow rate in kilometers per year?

13. A teacher keeps track of how many books are read by students in each class. Which grade has read a higher rate of books per student? How many more books does the other grade need to read to have the same rate?

14. Charles Lindbergh made the first solo airplane flight from New York to Paris. His flight covered about 3610 miles in 33.5 hours.

a. Find the unit rate in .

b. Find the unit rate in .

c. Which is a better description of Lindbergh’s rate, about two miles per minute or about two minutes per mile? Explain your reasoning.

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Resources by Chapter All rights reserved.

190

Grade 6 Grade 7

Class A Class B Class C Class D

Students 25 31 21 23

Books Read 181 155 116 126