Ratios, Rates, Equivalent Ratios, & Unit Rate Review

Front

What is a ratio?

Back

A ratio is a comparison of two quantities by division, showing how many times one value contains or is contained within the other.

Front

What is a rate?

Back

A rate is a specific kind of ratio that compares two different units, such as miles per hour or price per item.

Front

What are equivalent ratios?

Back

Equivalent ratios are two or more ratios that express the same relationship between quantities, even if the numbers are different.

Front

How do you find the unit rate?

Back

To find the unit rate, divide the quantity by the number of units. For example, if 10 gallons cost $12.50, the unit rate is $12.50 ÷ 10 = $1.25 per gallon.

Front

What is the ratio of 4 to 5 expressed as a fraction?

Back

Front

If a car travels 512 miles on 16 gallons of gasoline, what is the miles per gallon?

Back

The miles per gallon is calculated as 512 miles ÷ 16 gallons = 32 miles per gallon.

Front

What is the ratio of green beans to peas if there are 31 green beans and 13 peas?

Back

The ratio of green beans to peas is 31:13.

Front

How do you simplify the ratio 50:40?

Back

To simplify the ratio 50:40, divide both numbers by their greatest common divisor, which is 10. The simplified ratio is 5:4.

Front

What is the unit rate if 5 apples cost $2.50?

Back

The unit rate is $2.50 ÷ 5 apples = $0.50 per apple.

Front

If Jessica earns $15.30 for 3 hours of work, what is her hourly rate?

Back

To find the hourly rate, divide $15.30 by 3 hours, which equals $5.10 per hour.