Rates: 6th Grade

Front

What is a rate?

Back

A rate is a ratio that compares two different quantities, often expressed as a quantity per unit of another quantity.

Front

How do you calculate the unit rate?

Back

To calculate the unit rate, divide the total quantity by the number of units. For example, if 7 apples cost $4.55, the unit rate is $4.55 ÷ 7.

Front

If Luke can paint 91 portraits in 7 weeks, how many portraits does he paint each week?

Back

13 portraits per week.

Front

What is the cost per apple if 7 apples cost $4.55?

Back

$0.65 per apple.

Front

How do you find the unit rate in dollars per pound?

Back

Divide the total cost by the total weight. For example, if Will spent $3.75 for 3 pounds of granola, the unit rate is $3.75 ÷ 3.

Front

If Ken can walk 40 dogs in 8 hours, how many dogs can he walk in one hour?

Back

5 dogs per hour.

Front

What is the unit rate in customers per hour if a store has 120 customers in 6 hours?

Back

20 customers per hour.

Front

What is a unit rate?

Back

A unit rate is a rate in which the second quantity is 1. It shows how much of one quantity corresponds to one unit of another quantity.

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 simplify it to a ratio of 1.

Front

What is the formula for calculating rates?

Back

Rate = Quantity 1 / Quantity 2.