Question

The area of a rectangle is 60 square meters. one side has length x. write the perimeter p of the rectangle as a function of x

Answer 1

A = X * W
60 = X * W
60/X = W

P = 2( X + W)
P = 2X + 2(60/X)
P = 2X + 120/X

P(X) = 2X + (120/X) <===