1. | Solve | |||||

3.5 | 2.5 | |||||

4 | 3 | |||||

Hint | ||||||

2. | The #712 school bus traveled 150 miles on 10 gallons of gas. How many miles per gallon does the bus get? | |||||

1.5 | 15 | |||||

0.15 | 150 | |||||

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3. | In a recent survey, 336 out of 500 people chose Reallygood Cola as their favorite soft drink. If a similar survey was conducted out of 2,000 people, how many people would chose Reallygood Cola as their favorite soft drink? | |||||

1,680 people | 1,344 people | |||||

1,000 people | 672 people | |||||

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4. | Approximately 105 out of 350 teens have their own savings account. Express the ratio 105:350 as a fraction in simplest form. | |||||

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5. | A six-pack of soda costs $2.49, a 12-pack of soda costs $3.99, and a 24-pack of soda costs $5.49. Which pack has the lowest cost per unit? | |||||

6-pack | 12-pack | |||||

The unit rates are equal. | 24-pack | |||||

Hint | ||||||

6. | Corbin earned $90 by working 10 hours at a grocery store. He earned $60 by working 6 hours at the library. Are these rates equivalent? Explain your reasoning. | |||||

Since the rates do not have the same unit rate, Corbin’s pay rates were not equivalent. | Since the rates do not have the same unit rate, Corbin’s pay rates were equivalent. | |||||

Since the rates have the same unit rate, Corbin’s pay rates were equivalent. | Since the rates have the same unit rate, Corbin’s pay rates were not equivalent. | |||||

Hint | ||||||

7. | Liam earns $7 an hour shoveling snow. What is the relationship between the number of hours and the amount he earns? | |||||

non-proportional | cannot be determined | |||||

ratio | proportional | |||||

Hint | ||||||

8. | From the table, what is the relationship between the cost to rent a car and the number of miles it is driven? | |||||

non-proportional | ratio | |||||

proportional | cannot be determined | |||||

Hint | ||||||

9. | What is the constant rate of change shown in the graph? | |||||

55 mph | 70 mph | |||||

130 mph | 65 mph | |||||

Hint | ||||||

10. | A car travels 195 miles in 3 hours. Assuming that the distance the car travels varies directly with the time, how far will the car travel in 5.5 hours? | |||||

300 miles | 195 miles | |||||

357.5 miles | 220.5 miles | |||||

Hint | ||||||

11. | Shanda knits 5 scarves in 2 hours. Assuming the number of scarves she knits varies directly with time, how many scarves will she knit in 10 hours? | |||||

2 | 5 | |||||

25 | 10 | |||||

Hint | ||||||

12. | Lorenzo opens a checking account. He makes the same deposit every month and makes no withdrawals. After 2 months he has $100, after 4 months he has $200, and after 6 months he has $400. What is the rate of change? | |||||

$100 | $150 | |||||

$200 | $50 | |||||

Hint | ||||||

13. | Convert 17 inches to centimeters. | |||||

204 cm | 1.42 cm | |||||

6.72 cm | 43.15 cm | |||||

Hint | ||||||

14. | Convert 13 liters to gallons. | |||||

49.27 gal | 3.43 gal | |||||

0.13 gal | 39 gal | |||||

Hint | ||||||

15. | A golden eagle can reach a speed of up to 193 kilometers per hour during a dive to catch prey. How fast is this in meters per second? | |||||

53.6 m/s | 193,000 m/s | |||||

0.54 m/s | 3216.7 m/s | |||||

Hint | ||||||

16. | Crocodiles can swim up to 30 feet per second. How many miles per hour can a crocodile swim? | |||||

0.3 mph | 62.1 mph | |||||

44 mph | 20.5 mph | |||||

Hint | ||||||

17. | Mariana opened a savings account and now deposits money into her account every week. The graph shows her account balance after several weeks. Determine whether the amount in her savings account is proportional to the number of weeks. | |||||

proportional; the graph is a straight line and the rate of change is constant | proportional; the graph is a straight line through the origin | |||||

not proportional; the graph is a straight line, but does not pass through the origin | not proportional; the graph is not a straight line | |||||

Hint | ||||||

18. | The graph shows the distance two cars travel after 1, 2, and 3 hours of driving. Which statement is true? | |||||

The number of hours is proportional to the number of miles driven for Car A only. | The number of hours is proportional to the number of miles driven for Car B only. | |||||

The number of hours is not proportional to the number of miles drive for either car. | The number of hours is proportional to the number of miles driven for both cars. | |||||

Hint | ||||||

19. | Simplify. | |||||

25 | 4 | |||||

Hint | ||||||

20. | Simplify. | |||||

9 | ||||||

4 | ||||||

Hint | ||||||