Rates and Unit rates review flashcard

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 earn $50 for 2 hours of work, the unit rate is $25 per hour.

Front

How do you calculate the unit rate?

Back

To calculate the unit rate, divide the total amount by the number of units. For example, if you spent $3.75 for 3 pounds of granola, the unit rate is $3.75 ÷ 3 = $1.25 per pound.

Front

If you earn $200 for 8 hours of work, what is your unit rate in dollars per hour?

Back

$25 per hour.

Front

What is the unit rate of $46.80 for 13 gallons of gas?

Back

$3.60 per gallon.

Front

Which is the better buy: a 12-pack of soda for $3.50 or a 6-pack for $1.80?

Back

The 12-pack is the better buy.

Front

How do you find the cost per item when given the total cost and number of items?

Back

Divide the total cost by the number of items. For example, if you pay $279 for 9 concert tickets, the cost per ticket is $279 ÷ 9 = $31.

Front

What is the formula for calculating unit price?

Back

Unit Price = Total Price ÷ Number of Units.

Front

If a 6-pack of drinks costs $1.80, what is the price per drink?

Back

$1.80 ÷ 6 = $0.30 per drink.

Front

What does it mean if two items have the same unit price?

Back

It means that the cost per unit is the same for both items, making them equally priced.

Front

If you buy 5 pounds of apples for $10, what is the unit rate?

Back

$10 ÷ 5 = $2 per pound.