Question

A square has side lengths of (4x+5) inches.Write an expression to represent the perimeter of the rectangle.Then find the perimeter if the value of x is 3 inches.

Answer 1

68 inches

Explanation:

P = 2 (L + W)

P = 2(4x+5 + 4x+5)

P = 2(8x + 10)

P = 16x + 20

If x= 3

P = 16(3) + 20

P = 48 + 20

P = 68 inches