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 a quantity of one. For example, if you travel 60 miles in 2 hours, the unit rate is 30 miles per hour.

Front

Which of the following is NOT a unit rate? 27 sandwiches in 3 weeks, 45 miles per hour, 2 cars, 1 lane?

Back

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

Front

How do you calculate a unit rate?

Back

To calculate a unit rate, divide the first quantity by the second quantity to find out how much of the first quantity corresponds to one unit of the second quantity.

Front

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

Back

$6.80 per hour.

Front

What is the unit price of Sargento cheese slices if they cost $2.48 for 10 slices?

Back

$0.248 per slice.

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

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 a unit rate because it expresses the cost per one slice.

Front

What is the formula to find the unit rate?

Back

Unit Rate = Total Quantity / Number of Units.

Front

If a car travels 150 miles in 3 hours, what is the unit rate in miles per hour?

Back

50 miles per hour.

Front

What does it mean if a unit rate is lower than another?

Back

It means that the first option is a better deal or more efficient compared to the second option.