7th math review

Front

What is the formula for the circumference of a circle?

Back

C = 2Πr, where C is the circumference and r is the radius.

Front

If a circle has a circumference of 14Π inches, what is the radius?

Back

The radius is 7 inches.

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 1 unit.

Front

How do you find the unit rate of sugar to vanilla in a recipe?

Back

Divide the amount of sugar by the amount of vanilla to find the unit rate.

Front

What is the unit rate of sugar to vanilla if a recipe calls for 2/3 cup of sugar for every 1/2 teaspoon of vanilla?

Back

1 1/3 cups of sugar per teaspoon of vanilla.

Front

What is the measure of an angle if it is given as < x?

Back

The measure of < x is the degree value assigned to that angle.

Front

If < x measures 113 degrees, what can you say about its classification?

Back

It is an obtuse angle because it is greater than 90 degrees.

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

If a company mixes 7 cups of blue paint for every 4 cups of yellow paint, what is the ratio of blue to yellow paint?

Back

The ratio is 7:4.

Front

How do you convert a ratio to a unit rate?

Back

Divide the first quantity by the second quantity.