Unit Rates

Front

What is a unit rate?

Back

A unit rate is a comparison of two different quantities when they are combined together. It expresses how much of one quantity corresponds to one unit of another quantity.

Front

How do you calculate a unit rate?

Back

To calculate a unit rate, divide the quantity of one item by the quantity of another item. For example, if you can buy 4 apples for $2, the unit rate is $2/4 apples = $0.50 per apple.

Front

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

Back

The unit rate of speed is 300 miles / 5 hours = 60 miles per hour.

Front

What is the unit price of an item?

Back

The unit price is the cost per single unit of measure, such as per ounce, per pound, or per item.

Front

If a 10-pound bag of rice costs $20, what is the price per pound?

Back

The price per pound is $20 / 10 pounds = $2 per pound.

Front

How can you determine which is the better buy between two products?

Back

To determine the better buy, calculate the unit price for each product and compare them. The product with the lower unit price is the better buy.

Front

If a recipe requires 3 cups of flour for 4 servings, how much flour is needed for 1 serving?

Back

For 1 serving, you need 3 cups / 4 servings = 0.75 cups of flour.

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.

Front

If a person can read 120 pages in 2 hours, what is their reading rate per hour?

Back

The reading rate is 120 pages / 2 hours = 60 pages per hour.

Front

What is a proportional relationship?

Back

A proportional relationship is a relationship between two quantities where the ratio between them remains constant.