Rates, Ratios & Unit Rates

Front

What is a ratio?

Back

A ratio is a comparison of two quantities, showing the relative size of one quantity to another.

Front

What mathematical operation do ratios involve?

Back

Division.

Front

What is a unit rate?

Back

A unit rate is a ratio that compares a quantity to one unit of another quantity.

Front

How do you calculate a unit rate?

Back

To calculate a unit rate, divide the total quantity by the number of units.

Front

If a box of 12 cookies costs $3.00, what is the unit rate in dollars per cookie?

Back

$0.25 per cookie.

Front

What is the difference between a ratio and a fraction?

Back

A ratio compares two quantities, while a fraction represents a part of a whole.

Front

Which of the following expresses a ratio? 2/3, two-thirds, 0.667, 2.3

Back

2/3.

Front

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

Back

102 words per minute.

Front

If a car travels 300 miles in 5 hours, what is the unit rate in miles per hour?

Back

60 miles per hour.

Front

Find the unit rate of one diaper if a box of 35 diapers costs $6.99.

Back

$0.20.