Ratios, Rates, Unit Rates

Front

What is a ratio?

Back

A ratio is a comparison of two quantities, showing how many times one value contains or is contained within the other.

Front

How do you express a ratio?

Back

Ratios can be expressed in three ways: as a fraction (e.g., 2/3), with a colon (e.g., 2:3), or in words (e.g., 'two to three').

Front

What is a rate?

Back

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

Front

What is a unit rate?

Back

A unit rate is a rate in which the second quantity is one unit, such as 60 miles per hour (60 miles for 1 hour).

Front

If there are 20 apples in the fridge and 9 on the table, what is the ratio of apples in the fridge to apples on the table?

Back

20/9

Front

Cheerios 17 ounces for $3.68 or Apple Jacks at $2.89 for 13 oz. Which is the better buy?

Back

Cheerios

Front

Which rate is equivalent to $9 per hour?

Back

$27 in 3 hours.

Front

The Pickering family bought four concert tickets for $252. What was the price per ticket?

Back

$63.00

Front

Which of the following expresses a ratio? 2/3, two-thirds, 0.667, 2.3

Back

2/3

Front

How do you find a unit rate from a rate?

Back

To find a unit rate, divide the numerator by the denominator to express the rate per one unit.