Ratios Test Practice 2023

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 the unit rate from a given amount?

Back

To calculate the unit rate, divide the total amount by the number of units. For example, if Mr. Keys made $90 in 5 hours, the unit rate is $90 ÷ 5 hours = $18 per hour.

Front

What is a ratio?

Back

A ratio is a relationship between two numbers indicating how many times the first number contains the second.

Front

How do you find a missing number in a ratio table?

Back

To find a missing number in a ratio table, use equivalent ratios to set up a proportion and solve for the unknown.

Front

If a recipe calls for 6 cups of sliced apples for 1 pie, how many cups are needed for 4 pies?

Back

24 cups of sliced apples are needed for 4 apple pies (6 cups x 4 = 24 cups).

Front

What does it mean for two rates to be equivalent?

Back

Two rates are equivalent if they represent the same relationship between quantities. For example, if Mrs. Shelly paid $3 for 6 muffins and Mrs. Kloske paid $9 for 18 muffins, both rates are equivalent.

Front

How do you determine if two ratios are equivalent?

Back

To determine if two ratios are equivalent, cross-multiply and compare the products. If the products are equal, the ratios are equivalent.

Front

If Jose swims 3 laps in 2 minutes, how long will it take him to swim 27 laps?

Back

It will take Jose 18 minutes to swim 27 laps (27 laps ÷ 3 laps per 2 minutes = 18 minutes).

Front

What is the formula for finding the total amount based on unit rate?

Back

Total Amount = Unit Rate x Number of Units.

Front

How can you express a ratio in simplest form?

Back

To express a ratio in simplest form, divide both terms of the ratio by their greatest common divisor (GCD).