Rates and 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 single unit. For example, if you earn $6 for each hour worked, the unit rate is $6 per hour.

Front

How do you find the unit rate from a ratio?

Back

To find the unit rate from a ratio, divide the first quantity by the second quantity. For example, if the ratio is 10 miles in 2 hours, the unit rate is 10 miles ÷ 2 hours = 5 miles per hour.

Front

What is the ratio of boys to girls if there are 13 boys and 10 girls?

Back

The ratio of boys to girls is 13 to 10.

Front

If Alicia drove 182.4 miles in 3 hours, what is her speed in miles per hour?

Back

Alicia's speed is 182.4 miles ÷ 3 hours = 60.8 miles per hour.

Front

What is an example of a real-world unit rate?

Back

An example of a real-world unit rate is miles per hour, which measures speed.

Front

If 7 apples cost $4.55, how much does one apple cost?

Back

The cost per apple is $4.55 ÷ 7 apples = $0.65 per apple.

Front

What is the formula to calculate a unit rate?

Back

The formula to calculate a unit rate is: Unit Rate = Total Quantity ÷ Number of Units.

Front

What does the term 'ratio' mean?

Back

A ratio is a relationship between two quantities, showing how many times one value contains or is contained within the other.

Front

How can you express a ratio in simplest form?

Back

To express a ratio in simplest form, divide both terms of the ratio by their greatest common divisor.

Front

What is the unit rate of 10 miles in 2 hours?

Back

The unit rate is 10 miles ÷ 2 hours = 5 miles per hour.