Unit Rate Review

Determine the better buy using unit rate: A 12-pack of juice boxes costs $4.80. A 6-pack of the same juice boxes costs $2.40. Which is the better buy?

• 6-pack for $4.80 is the better buy

• Both packs have the same unit rate

• 12-pack for $2.40 is the better buy

• 12-pack for $4.80 is the better buy

Determine the better buy using unit rate: A 20-ounce bottle of shampoo costs $5. A 10-ounce bottle of the same shampoo costs $2.50. Which is the better buy?

• The 20-ounce bottle costs twice as much as the 10-ounce bottle

• The 20-ounce bottle is cheaper per ounce

• The 10-ounce bottle is more expensive overall

• Both bottles are the same price per ounce.

Solve word problems involving unit rate: If 8 gallons of paint cover 320 square feet, how many gallons of paint are needed to cover 400 square feet?

• 20 gallons

• 10 gallons

• 15 gallons

• 5 gallons

Solve word problems involving unit rate: If a car travels 240 miles on 12 gallons of gas, how far can it travel on 15 gallons of gas?

• 200 miles

• 180 miles

• 150 miles

• 300 miles

Compare unit rates: A car travels 300 miles on 10 gallons of gas. Another car travels 400 miles on 15 gallons of gas. Which car has the better fuel efficiency?

• The second car has a unit rate of 26.67 miles per gallon, so it has worse fuel efficiency.

• The second car has a unit rate of 35 miles per gallon, so it has better fuel efficiency.

• The first car has a unit rate of 20 miles per gallon, so it has worse fuel efficiency.

• The first car has a unit rate of 30 miles per gallon, and the second car has a unit rate of 26.67 miles per gallon. Therefore, the first car has better fuel efficiency.