Unit Rates and Comparing Unit Rates

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 one unit. For example, if you can buy 3 apples for $1.50, the unit rate is $0.50 per apple.

Front

How do you calculate a unit rate?

Back

To calculate a unit rate, divide the first quantity by the second quantity. For example, if you travel 60 miles in 2 hours, the unit rate is 60 miles ÷ 2 hours = 30 miles per hour.

Front

Which of the following is an example of a unit rate? 16 miles/6 days, 15 words/30 seconds, $3.18/1 slice of pizza, $15.82/two movie tickets?

Back

$3.18/1 slice of pizza is an example of a unit rate.

Front

Find the unit rate: Hannah reads 5/8 page in 2/3 minute.

Back

15/16 pages per minute.

Front

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

Back

$1.18 per pound.

Front

Alycia earned $20.40 in 3 hours. What is her unit rate in dollars per hour?

Back

$6.80 per hour.

Front

How do you compare unit rates?

Back

To compare unit rates, calculate the unit rate for each option and then compare the values. The lower the unit rate, the better the deal.

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 oz.

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 oz.

Front

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

Back

Cheez-its are the better deal because they have a lower unit price.