Unit Rates

Front

What is a unit rate?

Back

A unit rate is a ratio that compares a quantity to one unit of another quantity, often expressed as 'per' something, like miles per hour or cost per item.

Front

How do you calculate the unit rate from a total cost and quantity?

Back

To find the unit rate, divide the total cost by the number of items. For example, if 9 tickets cost $279, the unit rate is $279 ÷ 9 = $31 per ticket.

Front

If 5.5 ounces cost $2.53, how do you find the cost per ounce?

Back

Divide the total cost by the weight in ounces: $2.53 ÷ 5.5 = $0.46 per ounce.

Front

What is the formula for finding the cost per item?

Back

Cost per item = Total cost ÷ Number of items.

Front

If a table shows total costs for different quantities, how can you find the cost per item?

Back

Identify the total cost for a specific quantity and divide it by that quantity.

Front

What is the unit rate if 7 apples cost $4.55?

Back

To find the cost per apple, divide $4.55 by 7, which equals approximately $0.65 per apple.

Front

What does it mean if a unit rate is expressed as 'dollars per item'?

Back

It indicates how much one item costs in dollars.

Front

How can you use unit rates to compare prices?

Back

By calculating the unit rates for different items, you can determine which item offers the best value for money.

Front

What is the unit rate for 10 miles driven in 2 hours?

Back

The unit rate is 10 miles ÷ 2 hours = 5 miles per hour.

Front

If a car travels 150 miles on 5 gallons of gas, what is the unit rate of miles per gallon?

Back

The unit rate is 150 miles ÷ 5 gallons = 30 miles per gallon.