7th grade Math

Front

What is the definition of Diameter?

Back

The diameter is the distance across a circle through its center, equal to twice the radius.

Front

In the equation 2x + 8 = 16, what is the coefficient of x?

Back

The coefficient of x is 2.

Front

How do you calculate the mean of a set of numbers?

Back

To find the mean, add all the numbers together and divide by the total count of numbers.

Front

What is the inverse operation of addition?

Back

The inverse operation of addition is subtraction.

Front

In the equation 2x + 8 = 16, what is the variable?

Back

The variable is x.

Front

What is the definition of Perimeter?

Back

The perimeter is the total distance around a two-dimensional shape.

Front

What is the definition of Surface Area?

Back

Surface area is the total area that the surface of a three-dimensional object occupies.

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 solve for x in the equation 2x + 8 = 16?

Back

Subtract 8 from both sides to get 2x = 8, then divide by 2 to find x = 4.

Front

What is the formula for calculating the area of a rectangle?

Back

Area = length × width.