REVIEW: Unit Rate & Tables

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, 35 miles per 1 hour is a unit rate.

Front

How do you calculate the unit rate from a given distance and time?

Back

To find the unit rate, divide the total distance by the total time. For example, if you drive 200 miles in 2 hours, the unit rate is 200 miles ÷ 2 hours = 100 miles per hour.

Front

If a recipe calls for 2/3 cup of one ingredient for every 3/4 cup of another, how do you find the amount needed for a different quantity?

Back

Set up a proportion based on the original ratio. If you want to use 1 cup of the first ingredient, calculate the corresponding amount of the second ingredient using cross-multiplication.

Front

How do you determine which option is a better buy when comparing prices?

Back

Calculate the unit price for each option by dividing the total cost by the number of items. The option with the lower unit price is the better buy.

Front

What is the unit cost of an item?

Back

The unit cost is the total cost divided by the number of units purchased. For example, if 15 pizzas cost $97.50, the unit cost per pizza is $97.50 ÷ 15 = $6.50.

Front

What is the formula for finding the unit rate?

Back

Unit Rate = Total Quantity / Number of Units.

Front

If you have a speed of 60 miles in 1 hour, what is the unit rate?

Back

The unit rate is 60 miles per hour.

Front

How can you express a ratio as a unit rate?

Back

To express a ratio as a unit rate, divide both parts of the ratio by the second part. For example, the ratio 4:2 can be expressed as 2:1.

Front

What does it mean if two items have the same unit price?

Back

If two items have the same unit price, it means they cost the same per unit, and neither is a better buy based on price alone.

Front

How do you convert a fraction to a unit rate?

Back

To convert a fraction to a unit rate, divide the numerator by the denominator and express it in terms of one unit.