7.CE.2 Unit Rates & Unit Prices

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 one unit. For example, if a car travels 300 miles in 5 hours, the unit rate is 60 miles per hour.

Front

How do you calculate a unit rate?

Back

To calculate a unit rate, divide the first quantity by the second quantity. For example, if there are 120 customers in 6 hours, the unit rate is 120 ÷ 6 = 20 customers per hour.

Front

If a car travels 280 miles in 7 hours, how far will it travel in 1 hour?

Back

40 miles.

Front

What does it mean for a relationship to be proportional?

Back

A relationship is proportional if two quantities maintain a constant ratio. This means that as one quantity increases, the other quantity increases at the same rate.

Front

Does the table represent a proportional relationship? (Hint: Cross (x))

Back

Yes, if the ratios of the quantities are constant.

Front

What is the unit price?

Back

The unit price is the cost per single unit of a product, allowing consumers to compare prices effectively.

Front

How do you find the unit price?

Back

To find the unit price, divide the total price by the number of units. For example, if a 12-pack of soda costs $6, the unit price is $6 ÷ 12 = $0.50 per soda.

Front

If a store sells 5 apples for $3, what is the unit price per apple?

Back

$0.60 per apple.

Front

What is a proportional relationship in a table?

Back

A proportional relationship in a table shows that the ratio of the values in one column to the values in another column is constant.

Front

If a table shows the following pairs: (1, 2), (2, 4), (3, 6), is this a proportional relationship?

Back

Yes, because the ratio of y to x is constant (2:1).