Ratios and Proportions Exam

What is the cost of 1 gallon of gas if you pay $31.20 for 15 gallons of gas? Hint: What is the unit rate?

• $1.95

• $0.15

• $2.08

• $10.00

Which is the better buy?

• 4 pack of t-shirts for $2.24

• 6-pack of t-shirts for $3.12

• 8 pack of t-shirts for $4.24

If Kevin bought 3 lbs of lettuce for $3.54, how much did the lettuce cost per pound?

• $1.18 per pound

• $1.32 per pound

• $10.62 per pound

• $10.16 per pound

An eight pack of juice boxes costs $4.79, and a 12 pack of juice boxes cost $6.59. Use this information to calculate the better buy.

• 8 pack

• 12 pack

Calculate the better buy.

• 2-ounce bottle of soap for $1.80

• 8-ounce bottle of soap for $7.28

Which item is a better buy?

• Edward sells apples in 5 pounds of bags for $3.80

• Hailey sells apples in 3 pounds of bags for $2.25

Complete the ratio table.

• 6

• 8

• 9

• 5

An ostrich can run at a rate of 50 miles in 60 minutes. At this rate, how long would it take an ostrich to run 15 miles?

• 12 minutes

• 18 minutes

• 5 minutes

• 10 minutes

Determine if the pair of ratios or rates are equivalent.

18 vocabulary words learned in 2 hours; 27 vocabulary words learned in 3 hours

• Yes

• No

Determine if the rates are equivalent. Explain your reasoning.

8 practices in 2 weeks 2 days; 4 practices in 8 days

• The numerator and denominator are not divided by the same number, so the rates are not equivalent.

• The numerator and denominator are not divided by the same number, so the rates are equivalent.

• The numerator and denominator are divided by the same number, so the rates are not equivalent.

• The numerator and denominator are divided by the same number, so the rates are equivalent.