Ratios, Rates, Unit Rates

Front

What is a ratio?

Back

A ratio is a comparison of two quantities by division, expressed as 'a to b' or 'a:b'.

Front

How do you find the unit rate?

Back

To find the unit rate, divide the total amount by the number of units. For example, if you have $3.60 for 12 eggs, the unit rate is $3.60 ÷ 12 = $0.30 per egg.

Front

What is a unit rate?

Back

A unit rate is a rate in which the second quantity is one unit. For example, if you buy 18 bottles of Gatorade for $9.36, the unit rate is $9.36 ÷ 18 = $0.52 per bottle.

Front

What is the correct ratio for 14 apples to 23 grapes?

Back

The correct ratio is 14:23.

Front

Which of the following is an incorrect ratio for 15 red buttons to 12 blue buttons?

Back

The incorrect ratio is 12:15.

Front

What does it mean if a graph shows a proportional relationship?

Back

A graph shows a proportional relationship if it is a straight line that passes through the origin.

Front

How can you express the ratio of 15 red buttons to 12 blue buttons in fraction form?

Back

Front

What is the unit rate of $9.36 for 18 bottles of Gatorade?

Back

The unit rate is $0.52 per bottle.

Front

If a recipe calls for 2 cups of flour for every 3 cups of sugar, what is the ratio of flour to sugar?

Back

The ratio of flour to sugar is 2:3.

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.