Unit Rates

Front

What is a unit rate?

Back

A unit rate is a comparison of two different quantities where one of the quantities is expressed as one unit. For example, if you can buy 3 apples for $1, the unit rate is $0.33 per apple.

Front

How do you calculate a unit rate?

Back

To calculate a unit rate, divide the total quantity by the number of units. For example, if you have 60 beads and want to find the unit rate per bead, you would divide 60 by the number of necklaces.

Front

If 4 necklaces have 60 beads, how many necklaces can you make with 225 beads?

Back

15 necklaces.

Front

What is the unit rate for 24 bottles of water costing $3.49?

Back

$0.15 per bottle.

Front

How do you find the cost per mile on a toll road that charges $0.20 per 1/4 mile?

Back

Multiply the cost per 1/4 mile by 4 to find the cost per mile, which is $0.80.

Front

If a toll road costs $0.20 per 1/4 mile, how much will it cost to travel 9 1/2 miles?

Back

$7.60.

Front

What is the average heart rate if it beats 20 times in 1/3 of a minute?

Back

The average heart will beat 420 times in 7 minutes.

Front

How do you convert a rate to a unit rate?

Back

To convert a rate to a unit rate, divide both quantities by the same number to express one quantity as one unit.

Front

If a swimmer swam 100 meters in 40 seconds, what is the unit rate?

Back

2.5 meters per second.

Front

What is the formula to find the total cost based on unit rate?

Back

Total Cost = Unit Rate × Quantity.