Unit Rates Practice

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 a quantity of one. For example, if you earn $50 for 5 hours of work, the unit rate is $10 per hour.

Front

How do you calculate the unit rate from a total amount?

Back

To calculate the unit rate, divide the total amount by the total quantity. For example, if Stacy earned $234 for 36 hours of work, the unit rate is $234 ÷ 36 = $6.50 per hour.

Front

If a dozen eggs cost $1.68, how do you find the cost of one egg?

Back

To find the cost of one egg, divide the total cost by the number of eggs. $1.68 ÷ 12 = $0.14 per egg.

Front

What is the formula to find the cost per pound?

Back

The formula to find the cost per pound is: Cost per pound = Total cost ÷ Total weight in pounds.

Front

If Patrick washes 21 cars and earns $7.50 for every 3 cars, how do you find his pay per car?

Back

To find the pay per car, first find the total pay for 21 cars, then divide by the number of cars. Total pay = ($7.50 ÷ 3) × 21 = $52.50; Pay per car = $52.50 ÷ 21 = $2.50.

Front

How do you determine how many square feet can be mowed in one hour?

Back

To determine how many square feet can be mowed in one hour, divide the total area mowed by the total time taken. For example, 800 square feet ÷ 2.5 hours = 320 square feet per hour.

Front

What is the relationship between unit rates and ratios?

Back

Unit rates are a specific type of ratio that compares a quantity to one unit of another quantity. For example, a speed of 60 miles per hour is a unit rate.

Front

How can you use unit rates to compare prices?

Back

You can use unit rates to compare prices by calculating the cost per unit for different products. The product with the lower unit rate is the better deal.

Front

What is the importance of understanding unit rates in real life?

Back

Understanding unit rates helps in making informed decisions about purchases, budgeting, and comparing different options in everyday life.

Front

If a car travels 300 miles in 5 hours, what is the unit rate of speed?

Back

To find the unit rate of speed, divide the distance by the time. 300 miles ÷ 5 hours = 60 miles per hour.