[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 3 pounds of tomatoes cost $6.90, the unit rate is $6.90/3 pounds = $2.30 per pound.

Front

How do you calculate the cost of multiple items using unit rates?

Back

To calculate the cost of multiple items, first find the unit rate (cost per item), then multiply the unit rate by the number of items you want to buy. For example, if apples cost $0.60 each and you want to buy 10 apples, the total cost is $0.60 x 10 = $6.00.

Front

If 4 apples cost $2.40, how much do 10 apples cost?

Back

First, find the unit rate: $2.40 / 4 apples = $0.60 per apple. Then, multiply by 10: $0.60 x 10 = $6.00.

Front

What is the formula to find the total cost from a unit rate?

Back

Total Cost = Unit Rate x Number of Items. For example, if the unit rate is $2.30 per pound and you buy 7 pounds, Total Cost = $2.30 x 7 = $16.10.

Front

How do you find the unit price of an item?

Back

To find the unit price, divide the total price by the number of items. For example, if 5 bags of chips cost $19.00, the unit price is $19.00 / 5 bags = $3.80 per bag.

Front

If 2 pairs of shoes cost $25.10, what is the cost of 9 pairs?

Back

First, find the unit price: $25.10 / 2 pairs = $12.55 per pair. Then, multiply by 9: $12.55 x 9 = $112.95.

Front

What is the cost of 6 bags of chips if 5 bags cost $19.00?

Back

First, find the unit price: $19.00 / 5 bags = $3.80 per bag. Then, multiply by 6: $3.80 x 6 = $22.80.

Front

How do you set up a proportion to solve a unit rate problem?

Back

Set up a proportion by comparing the known cost to the unknown cost. For example, if 3 pounds cost $6.90, set up the proportion: 3 pounds / $6.90 = 7 pounds / x, where x is the unknown cost.

Front

What is the importance of unit rates in real-life situations?

Back

Unit rates help consumers make informed decisions by comparing prices and understanding the cost per item, which can lead to better budgeting and spending.

Front

If 2 goldfish cost $15.30, how much do 5 goldfish cost?

Back

First, find the unit price: $15.30 / 2 goldfish = $7.65 per goldfish. Then, multiply by 5: $7.65 x 5 = $38.25.