1. Review 4-1 Ratios and Proportions

2. Find the Unit Rate $50 for 8 h

3. Find the unit rate 700 cal in 5 hours.

4. Does the following pair of ratios form a proportion? 3/4 and 9/12

5. Does the following pair of ratios form a proportion? 5/12 and 20/36

6. Solve the proportion g = 8 10 5

7. Solve the proportion 4/6 = x/24

8. Solve the proportion 2/9 = 10/x

9. Solve the proportion 3/6 = (x-3)/8

10. Solve the proportion (x+2)/(x-2) = 4/8

11. Solve the proportion You are riding your bicycle. It takes you 20 minutes to go 4 miles. If you continue traveling at the same rate, how long will it take you to go 12 miles?

12. Solve the proportion Suppose you traveled 60 miles in 2 hours. Moving at the same speed, how many miles would you cover in 3 ½ hours?

13. Solve the proportion A canary’s heart beats 100 times in 9 seconds. Use a proportion to find out how many times its heart beats in 42 seconds.

14. Dimensional Analysis. How many pounds are in 19 oz.? (1 lb = 16 oz.)

15. Dimensional Analysis How many seconds are in a day?