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 a car travels 60 miles in 1 hour, the unit rate is 60 miles per hour.

Front

How do you calculate a unit rate?

Back

To calculate a unit rate, divide the quantity of one item by the quantity of another item. For example, if you have 150 miles traveled in 3 hours, the unit rate is 150 miles ÷ 3 hours = 50 miles per hour.

Front

What is the unit rate of 6 miles per gallon?

Back

The unit rate of 6 miles per gallon is simply 6 miles for every 1 gallon.

Front

If a car travels 160 miles in 4 hours, what is the unit rate in miles per hour?

Back

The unit rate is 160 miles ÷ 4 hours = 40 miles per hour.

Front

If Justin can type 408 words in 4 minutes, how many words can he type in 1 minute?

Back

He can type 408 words ÷ 4 minutes = 102 words per minute.

Front

If Julie can type 300 words in 5 minutes, how many words can she type in 1 hour?

Back

In 1 hour (60 minutes), she can type 300 words ÷ 5 minutes × 60 minutes = 3600 words.

Front

What is the equivalent rate of $9 per hour?

Back

The equivalent rate of $9 per hour can be expressed as $27 in 3 hours.

Front

How do you find equivalent rates?

Back

To find equivalent rates, you can set up a proportion and cross-multiply or simplify the rates to see if they are equal.

Front

What is a proportional relationship?

Back

A proportional relationship is a relationship between two quantities where the ratio between them remains constant.

Front

If a recipe requires 2 cups of flour for 4 servings, how much flour is needed for 1 serving?

Back

For 1 serving, you need 2 cups ÷ 4 servings = 0.5 cups of flour.