Ratios and Rates Test

Front

What is a ratio?

Back

A ratio is a comparison of two quantities that shows how many times one value contains or is contained within the other.

Front

How do you simplify a ratio?

Back

To simplify a ratio, divide both terms by their greatest common divisor (GCD).

Front

What is a unit rate?

Back

A unit rate is a comparison of two different quantities when they are combined together, expressed as a quantity per one unit of another quantity.

Front

How do you find the price per item?

Back

To find the price per item, divide the total cost by the number of items.

Front

What is the formula for calculating a ratio?

Back

The formula for calculating a ratio is: Ratio = Quantity A : Quantity B.

Front

What does it mean if a ratio is expressed as 2:3?

Back

It means for every 2 parts of one quantity, there are 3 parts of another quantity.

Front

How can you compare two ratios?

Back

You can compare two ratios by cross-multiplying or converting them to fractions.

Front

What is the difference between a ratio and a rate?

Back

A ratio compares two quantities, while a rate compares two quantities with different units.

Front

If a recipe calls for a ratio of 1:4 of sugar to flour, how much flour is needed for 2 cups of sugar?

Back

8 cups of flour are needed (2 cups of sugar x 4).

Front

What is the better buy if 8 juice boxes cost $4.79 and 12 juice boxes cost $6.59?

Back

The 12 pack is the better buy.