Question

2. Ray found the perimeter of the window in
his bedroom to be 12 feet. If the length of the
window is 4 feet long, what is the width?​

Answer 1

Answer:

The perimeter of any rectangle is the sum of twice the width and twice the length.

 

Perimeter = 2(width) + 2(width)

 

 

Let length = x

Let width = x + 4

Perimeter = 28

 

 

Set up an equation using the variables and formula for perimeter.

 

2x + 2(x + 4) = 28

 

 

Solve for x from this equation.

 

2x + 2x + 8 = 28

4x + 8 = 28

4x = 20

  x = 5

 

Substitute this value of x into the variables to find your dimensions.