Review Ratios and Proportions

Simplify the ratio:

40:15

• 5:3

• 8:3

• 20:10

• 80:30

Decide if the ratios form a proportion:

• Yes, the ratios form a proportion because they are equivalent.

• No, the ratios do not form a proportion because they are not equivalent.

Decide if the ratios form a proportion:

• Yes, the ratios form a proportion because they are equivalent.

• No, the ratios do not form a proportion because they are not equivalent.

Solve the proportion:

• n = 0.8

• n = 1.6

• n = 0.4

• n = 2.5

Solve the proportion.

• n=6

• n=24

• n=7

• n=8

Kevin is mixing paint to make orange. The ratio of red paint to yellow paint is 3 oz to 5 oz. How much yellow paint should he mix with 9 oz of red paint?

• 15 oz

• 30 oz

• 45 oz

• 11 oz

Solve for the variable:

• 41

• 43

• 47

• 49

Solve the proportion:

• x = 3

• x = 1.5

• x = 0.67

• x = 0.33

Does the table represent a proportional relationship?

• Yes, the ratios in the table are equivalent ratios.

• No, the ratios in the table are not equivalent ratios.

Find the unit rate:

80 inches over 10 days

• 40 inches over 5 days

• 10 inches per day

• 0.125 inches per day

• 8 inches per day