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 to b' or a:b.

Front

How can ratios be written?

Back

Front

What is the unit rate?

Back

The unit rate is a comparison of two different quantities when they are combined together, expressed as a quantity per one unit of another quantity.

Front

If Charles has 7 baseball cards and Tracy has 10, what is the ratio of Charles's cards to Tracy's cards?

Back

7:10

Front

Back

1 and 2

Front

What is an equivalent ratio?

Back

An equivalent ratio is a ratio that expresses the same relationship between two quantities, even if the numbers are different.

Front

Back

Front

If you spend $40 on 5 pounds of concrete, what is the unit rate in dollars per pound?

Back

$8 per pound.

Front

A machine can pack 70 boxes of spaghetti in 5 minutes. How many boxes can they pack in 8 minutes?

Back

112 boxes.

Front

What does it mean if two ratios are equivalent?

Back

It means that they represent the same relationship between the quantities, even if the numbers are different.