Rates and Unit Rates

Front

What is a rate?

Back

A rate is a ratio that compares two different quantities, usually with different units, such as speed (miles per hour) or price (cost per item).

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is a unit rate?

Back

A unit rate is a rate in which the second quantity is one unit. For example, if a car travels 60 miles in 1 hour, the unit rate is 60 miles per hour.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

How do you convert pounds to ounces?

Back

To convert pounds to ounces, multiply the number of pounds by 16, since there are 16 ounces in a pound.

Tags

CCSS.4.MD.A.1

Front

If 5 notebooks cost $20, what is the cost of 1 notebook?

Back

The cost of 1 notebook is $4, calculated by dividing the total cost by the number of notebooks: $20 ÷ 5 = $4.

Tags

CCSS.6.RP.A.3B

Front

When are unit rates useful?

Back

Unit rates are useful when comparing prices or quantities to determine the best deal or to make informed decisions.

Tags

CCSS.6.RP.A.3B

Front

How many ounces are in 4 pounds?

Back

There are 64 ounces in 4 pounds, calculated by multiplying 4 pounds by 16 ounces per pound.

Tags

CCSS.4.MD.A.1

Front

If 2 slices of pizza have 230 calories, how many calories are in 1 slice?

Back

1 slice of pizza has 115 calories, calculated by dividing the total calories by the number of slices: 230 ÷ 2 = 115.

Tags

CCSS.6.RP.A.3B

Front

What is the unit cost of 15 pizzas that cost $97.50?

Back

The unit cost per pizza is $6.50, calculated by dividing the total cost by the number of pizzas: $97.50 ÷ 15 = $6.50.

Tags

CCSS.6.RP.A.3B

Front

How do you find the total cost using unit rates?

Back

To find the total cost, multiply the unit rate by the number of items. For example, if the unit rate is $4.95 per item and you buy 3 items, the total cost is $4.95 × 3 = $14.85.

Tags

CCSS.6.RP.A.3B

Front

What is the formula to calculate a unit rate?

Back

The formula to calculate a unit rate is: Unit Rate = Total Quantity / Number of Units.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2