[Review] Unit 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 a quantity of one. For example, if a car travels 300 miles in 5 hours, the unit rate is 60 miles per hour.

Front

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

Back

To calculate the unit rate from a total cost, divide the total cost by the number of items. For example, if 5 bags of chips cost $19.00, the unit rate is $19.00 ÷ 5 = $3.80 per bag.

Front

If 2 goldfish cost $15.30, how much does 1 goldfish cost?

Back

To find the cost of 1 goldfish, divide the total cost by the number of goldfish: $15.30 ÷ 2 = $7.65 per goldfish.

Front

What is the total cost for 5 goldfish if 2 goldfish cost $15.30?

Back

First, find the cost of 1 goldfish: $15.30 ÷ 2 = $7.65. Then multiply by 5: $7.65 × 5 = $38.25.

Front

How do you find the cost of multiple items based on a unit rate?

Back

Multiply the unit rate by the number of items you want to buy. For example, if the unit rate is $3.80 per bag and you want 6 bags, the total cost is $3.80 × 6 = $22.80.

Front

If 2 teddy bears cost $18.60, how much do 7 teddy bears cost?

Back

First, find the cost of 1 teddy bear: $18.60 ÷ 2 = $9.30. Then multiply by 7: $9.30 × 7 = $65.10.

Front

What is the cost of 12 packs of bubble gum if 3 packs cost $12.57?

Back

First, find the cost of 1 pack: $12.57 ÷ 3 = $4.19. Then multiply by 12: $4.19 × 12 = $50.28.

Front

How do you calculate the total cost for a different quantity of items?

Back

Use the unit rate to find the cost of one item, then multiply by the desired quantity. For example, if 3 pounds of hamburger cost $6, the unit rate is $2 per pound.

Front

If hamburger sells for 3 pounds for $6, how much will 10 pounds cost?

Back

First, find the cost per pound: $6 ÷ 3 = $2. Then multiply by 10: $2 × 10 = $20.

Front

What is the formula to find the total cost based on unit rate?

Back

Total Cost = Unit Rate × Number of Items.