Comparing Unit Rates (Better Buy)

Front

What is a unit rate?

Back

A unit rate is a comparison of two different quantities where one of the quantities is expressed as a quantity of one. For example, if you buy 3 apples for $6, the unit rate is $2 per apple.

Front

How do you calculate the unit price of an item?

Back

To calculate the unit price, divide the total price by the total quantity. For example, if a product costs $4 for 8 ounces, the unit price is $4 ÷ 8 = $0.50 per ounce.

Front

What is the unit price of Goldfish crackers priced at $1.99 for 7.2 oz?

Back

The unit price is $1.99 ÷ 7.2 oz = approximately $0.28 per ounce.

Front

What is the unit price of Cheez-its priced at $2.70 for 13.7 oz?

Back

The unit price is $2.70 ÷ 13.7 oz = approximately $0.20 per ounce.

Front

Which is the better buy: Goldfish crackers or Cheez-its?

Back

Cheez-its are the better buy because they have a lower unit price of approximately $0.20 per ounce compared to Goldfish crackers' unit price of approximately $0.28 per ounce.

Front

What is an example of a unit rate?

Back

An example of a unit rate is 60 miles per hour, which indicates the distance traveled in one hour.

Front

What is NOT a unit rate?

Back

27 sandwiches in 3 weeks is NOT a unit rate because it does not express a quantity per one unit of time.

Front

If you buy 5 pairs of socks for $15 and 10 pairs for $25, are these prices equivalent?

Back

No, they are not equivalent. The unit price for the first is $3 per pair and for the second is $2.50 per pair.

Front

How do you determine the best deal when comparing prices?

Back

To determine the best deal, calculate the unit price for each option and compare them. The option with the lower unit price is the better deal.

Front

What is the unit rate in dollars per pound if you spent $3.75 for 3 pounds of granola?

Back

The unit rate is $3.75 ÷ 3 pounds = $1.25 per pound.