Chapter 6 Review/Study Guide

Front

What is the formula to find the area of a rectangle?

Back

Area = length × width.

Front

If the area of a rectangle is 75 square feet and one side is 5 feet, what is the length of the other side?

Back

Length = Area ÷ Width = 75 ÷ 5 = 15 feet.

Front

What does it mean to decrease a number?

Back

To decrease a number means to subtract a certain value from it.

Front

What is the equation to represent 'A number decreased by 13 is 44'?

Back

x - 13 = 44.

Front

Back

Multiply both sides by 6: 90 = 3p, then divide by 3: p = 30.

Front

What is the perimeter of a square?

Back

Perimeter = 4 × side length.

Front

If the perimeter of a square is 25 meters, what is the length of one side?

Back

Side length = Perimeter ÷ 4 = 25 ÷ 4 = 6.25 meters.

Front

What is the equation to find the perimeter of a square if z is the side length?

Back

4z = Perimeter.

Front

What does it mean for a point to be a solution of an equation?

Back

A point (x, y) is a solution if it satisfies the equation when x and y are substituted.

Front

Is (4, 27) a solution of the equation y = 3x + 15?

Back

Yes, because when x = 4, y = 3(4) + 15 = 27.