Rates, Ratios & Unit Rates

Front

What is a unit rate?

Back

A unit rate is a ratio that compares a quantity to one unit of another quantity, often expressed as 'per' something, such as miles per hour or dollars per pound.

Front

What operation do ratios involve?

Back

Ratios involve division, as they compare two quantities by dividing one by the other.

Front

If you travel 22 miles in 1 hour, what is your speed in miles per hour?

Back

22 miles per hour is a unit rate.

Front

What is the unit rate if you spend $40 on 5 pounds of concrete?

Back

$8 per pound.

Front

What is the ratio of 20 apples in the fridge to 9 apples on the table?

Back

20/9.

Front

If Will spent $3.75 for 3 pounds of granola, what is his unit rate in dollars per pound?

Back

$1.25 per pound.

Front

How do you convert a ratio into a fraction?

Back

To convert a ratio into a fraction, write the first quantity as the numerator and the second quantity as the denominator.

Front

What is the ratio of 15 to 5?

Back

The ratio of 15 to 5 is 3:1.

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 is a ratio?

Back

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