Rate Word Problems

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 buy 3 pounds of granola for $3.75, the unit rate is the cost per pound.

Front

How do you find the unit rate?

Back

To find the unit rate, divide the total amount by the number of units. For example, if you spend $15 for 6 gallons of gasoline, the unit rate is $15 ÷ 6 = $2.50 per gallon.

Front

What is the purpose of finding a unit rate?

Back

Finding a unit rate helps you compare prices or quantities to determine the better deal or to understand the cost per unit.

Front

If Oreos cost $2.98 for 15 oz, what is the unit rate?

Back

The unit rate is $2.98 ÷ 15 oz = $0.1993 per ounce.

Front

If Chips Ahoy cost $2.50 for 14 oz, what is the unit rate?

Back

The unit rate is $2.50 ÷ 14 oz = $0.1786 per ounce.

Front

Which is the better deal: Oreos or Chips Ahoy?

Back

Chips Ahoy is the better deal because it has a lower unit rate of $0.1786 per ounce compared to Oreos' $0.1993 per ounce.

Front

What is the price per gallon if you paid $15.00 for 6 gallons of gasoline?

Back

The price per gallon is $15.00 ÷ 6 = $2.50 per gallon.

Front

How do you determine the cost per pound of concrete if you spend $40 on 5 pounds?

Back

The cost per pound is $40 ÷ 5 = $8.00 per pound.

Front

If an ice cream factory makes 120 quarts in 10 hours, how many quarts can be made in 3 hours?

Back

First, find the rate: 120 quarts ÷ 10 hours = 12 quarts per hour. Then, multiply by 3 hours: 12 quarts/hour × 3 hours = 36 quarts.

Front

What is the formula to find the total cost when given the unit rate and quantity?

Back

Total Cost = Unit Rate × Quantity.