[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 a different quantity using unit rates?

Back

To calculate the cost of a different quantity, first find the unit rate (cost per unit), then multiply the unit rate by the desired quantity. For example, if the unit rate is $2.30 per pound, to find the cost of 7 pounds, multiply $2.30 by 7.

Front

If 3 packs of bubble gum cost $12.57, how much does one pack cost?

Back

To find the cost of one pack, divide the total cost by the number of packs: $12.57 / 3 = $4.19 per pack.

Front

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

Back

Total Cost = Unit Rate × Quantity.

Front

If 6 pounds of seeds cost $157.38, how much would 5 pounds cost?

Back

First, find the unit rate: $157.38 / 6 = $26.23 per pound. Then multiply by 5: $26.23 × 5 = $131.15.

Front

How do you find the cost of 10 apples if 4 apples cost $2.40?

Back

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

Front

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

Back

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

Front

What is a proportional relationship in the context of unit rates?

Back

A proportional relationship is when two quantities maintain a constant ratio. For example, if the cost of tomatoes increases consistently with the weight, it shows a proportional relationship.

Front

How can you check if your unit rate calculation is correct?

Back

You can check by ensuring that the total cost calculated using the unit rate matches the original total cost given.

Front

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

Back

Understanding unit rates helps in making informed decisions about purchases, comparing prices, and budgeting effectively.