Rates, Ratios 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 one unit. For example, if you earn $20.40 in 3 hours, your unit rate is $6.80 per hour.

Front

How do you calculate a unit rate?

Back

To calculate a unit rate, divide the total amount by the number of units. For example, if you earned $20.40 in 3 hours, divide 20.40 by 3 to get $6.80 per hour.

Front

What is the ratio of 18 ounces to 3 cups in simplest form?

Back

The ratio of 18 ounces to 3 cups is 6 to 1.

Front

How do you simplify the ratio 35:14?

Back

To simplify the ratio 35:14, divide both numbers by their greatest common divisor, which is 7. This gives you 5:2.

Front

What are the three different kinds of ratios?

Back

The three different kinds of ratios are Part to Part, Part to Whole, and Whole to Part.

Front

If Alycia earned $20.40 in 3 hours, what is her unit rate?

Back

$6.80 per hour.

Front

If it snowed 14 inches in 5 hours, what is the unit rate of snowfall per hour?

Back

2.8 inches per hour.

Front

What does it mean to express a ratio as a fraction?

Back

Expressing a ratio as a fraction means writing the two quantities in the ratio as a fraction, such as 18 ounces to 3 cups as 18/3.

Front

What is the simplest form of the ratio 12:16?

Back

The simplest form of the ratio 12:16 is 3:4.

Front

How do you find the unit rate of a speed?

Back

To find the unit rate of speed, divide the distance traveled by the time taken. For example, if you travel 60 miles in 2 hours, the unit rate is 30 miles per hour.