REVIEW: Unit Rate & Tables

Front

What is a unit rate?

Back

A unit rate is a comparison of two different quantities when they are combined together. It is expressed as a quantity of one unit, such as miles per hour or cost per item.

Front

How do you calculate a unit rate?

Back

To calculate a unit rate, divide the first quantity by the second quantity. For example, if you drove 150 miles in 3 hours, the unit rate is 150 miles ÷ 3 hours = 50 miles per hour.

Front

If a cashier rings up 2 customers in 8 minutes, how many customers can he ring up in 30 minutes?

Back

7.5 customers.

Front

What is the formula to find the cost per item?

Back

Cost per item = Total cost ÷ Number of items.

Front

If you ordered 15 pizzas for $97.50, what is the cost per pizza?

Back

$6.50 per pizza.

Front

How do you find the speed in miles per hour?

Back

Speed (miles per hour) = Total miles ÷ Total hours.

Front

If Mr. Simmonds drove 200 miles in 2 hours, what was his speed?

Back

100 miles per hour.

Front

What is the cost of buying 6 pounds of bananas if the unit price is $1.44 per pound?

Back

$8.64.

Front

What is a ratio?

Back

A ratio is a relationship between two numbers indicating how many times the first number contains the second.

Front

If the ratio of red paint to yellow paint is 3:5, how much yellow paint is needed for 9 oz of red paint?

Back

15 oz of yellow paint.