Question

NEED HELP QUICK!!

The perimeter of a rectangular picture frame can be represented by the expression 6x , where x is one of the side lengths. Rewrite the expression as the sum of the four side lengths.

Answer 1

perimeter = x + x + 2x + 2x

Explanation:

• Perimeter of a rectangle = 2W + 2L
  (where W is the width and L is the length)

Let x = one of the width side lengths:

⇒ 6x = 2x + 2L

⇒ 6x - 2x = 2L

⇒ 4x = 2L

⇒ 4x ÷ 2 = L

⇒ 2x = L

Therefore, perimeter = x + x + 2x + 2x