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 kinds of quantities, such as speed (miles per hour) or price (cost per item).

Front

What is a unit rate?

Back

A unit rate is a rate in which the second quantity is one unit. For example, if a car travels 60 miles in 1 hour, the unit rate is 60 miles per hour.

Front

How do you calculate a unit rate?

Back

To calculate a unit rate, divide the first quantity by the second quantity.

Front

If 6 books cost $12, what is the cost of one book?

Back

$2

Front

Which of the following is NOT a ratio: 6:9, 5 = 7, 3 out of 4, 5/7?

Back

5 = 7

Front

If cookies cost $4.00 for 10, what is the unit rate per cookie?

Back

$0.40

Front

How do you find the total distance traveled if you know the speed and time?

Back

Multiply the speed by the time.

Front

If a dolphin swims at 30 miles per hour for 4 hours, how far does it swim?

Back

120 miles

Front

What is the formula for finding a ratio?

Back

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