Ratio & Proportion



Ratio & Proportion B Name

Date

Definitions

1. ***Ratio

2. ***Proportion

3. ***Unit ratio

4. ***In the proportion, [pic], the b and c are called the ____________________.

5. ***In the proportion, [pic], ad = bc is called the ______________________.

6. **Express the ratio 12 to 5 as a fraction.

7. **Express each ratio in simplest form.

a. 6 to 8

b. 24 to 32

8. **Joan’s club has 20 members. Fifteen are male and the remainder are females. Find:

a. The ratio of males to females.

b. The ratio of males to the total number of members in the club.

c. The ratio of the total number of people in the club to the number of females.

9. **Solve the proportion. [pic]

10. **Solve the proportion. [pic]

11. **Solve the proportion. [pic]

12. **If there are 16 ounces in one pound, how many ounces are there in five pounds?

13. **The legend on a map indicates one inch equals 20 miles. If the distance between two cites on the map is five inches, how many miles would have to be traveled?

14. **If a basketball player makes 15 out of 45 baskets in his first game, how many baskets would you expect him to make in the second game if he attempted 18?

15. **The chef used 1.5 cups of sugar to make 5 batches of cookies, how many cups of sugar would the chef need to make 25 batches of cookies?

16. **If three pieces of candy cost 25¢, how many pieces could you buy for $1.25?

17. **David reads 60 pages of a book in 50 minutes. How many pages should he be able to read in 80 minutes?

18. **Find the unit rate if 5 bags of chips cost $1.80

19. *If the ratio of boys to girls in cooking class is 3 to 8, how many girls are there in class if there are 55 students enrolled?

20. *The ratio of length to width of a rectangle is 10 : 3. Find the dimensions of the rectangle if the perimeter is 52 inches.

21. ***Write contact information to reach a parent or guardian; phone, cell phone or email address.(CHP)

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