Proportionality -- Problems

PROPORTIONALITY

PROBLEMS

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1. Janet's car uses 9 gallons to go 200 miles.

1. a) How many gallons will she use to go 400 miles? 18

1. b) How many gallons will she use to go 600 miles? 27

1. c) How far can she drive with 36 gallons? 800 miles

2. Bertha went on a diet and lost 5 pounds in 2 weeks. How long will it
2. take her to lose 15 pounds? 6 weeks

3. Carlos makes $25 in 4 hours.

3. a) How much will he make in 2 hours? $12.50

3. b) How much will he make in 20 hours? $125

3. c) How much will he make in 22 hours? $137.50

4. Carla makes $50 in 8 hours.

4. a) How much will she make in 4 hours? $25

4. b) How much will she make in 20 hours? $125

4. c) How much will she make in 36 hours? $225

5. 6 bottles cost $7.00.

5. a) How much will 18 bottles cost? $21

5. b) How much will 15 bottles cost? $17.50

5. c) How much will 27 bottles cost? $31.50

5. d) How many bottles can you buy with $10.50? 9

6. Which is a better value?

6. a) 15 ounces for $9.25, or 30 ounces for $18.00? 30 ounces for $18.

6. b) 15 ounces for $9.25, or 5 ounces for $3.29? 15 ounces for $9.25.

7. Which is a better value, 3 pounds for $7.00, or 10 pounds for
7. $21.00? 10 pounds for $21.

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