Ratios, Rates and 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

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 50 miles per 1 hour.

Front

If the unit rate for chocolate chip cookies is $0.25 per cookie, how much for 8 cookies?

Back

$2.00

Front

What is the missing value in the ratio 2:3 = ? : 12?

Back

The missing value is 8.

Front

A dolphin swam for 4 hours at 30 miles per hour. How far did he go?

Back

120 miles

Front

Which of these is NOT a ratio? 6:9, 5 = 7, 3 to 4, 5/7

Back

5 = 7

Front

Which of these is a unit rate? 60 miles per 6 hours, 2 buses : 110 kids, 2 pizzas per 10 kids, 55 kids per 1 bus

Back

55 kids per 1 bus

Front

How do you calculate a unit rate?

Back

To calculate a unit rate, divide the first quantity by the second quantity to find the amount per one unit.

Front

What is the formula for finding a ratio?

Back

The formula for finding a ratio is: Ratio = Quantity A : Quantity B.