Ratios and Rates

Front

What is a ratio?

Back

A ratio is a comparison of two quantities that shows the relative size of one quantity to another, often expressed as 'a:b'.

Front

What is a rate?

Back

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

Front

How do you find a unit rate?

Back

To find a unit rate, divide the quantity by the number of units to determine the amount per one unit.

Front

What is the ratio of 7 apples to 8 pears?

Back

The ratio of pears to apples is 8:7.

Front

If there are 56 cookies in 7 batches, how many cookies are in one batch?

Back

8 cookies per batch.

Front

What is the unit rate for 3 batteries costing $4.80?

Back

The unit rate is $1.60 per battery.

Front

What is the better deal: 3 batteries for $4.80 or 12 batteries for $14.76?

Back

12 batteries for $14.76 is the better deal.

Front

What is the total number of movies if there are 7 comedy, 8 horror, and 4 romance movies?

Back

The total number of movies is 19.

Front

How do you express the ratio of horror movies to all movies?

Back

The ratio of horror movies to all movies is 8:19.

Front

What does it mean if a ratio is simplified?

Back

A simplified ratio is expressed in the smallest whole numbers possible.