Question

the length of a rectangle is 3 units shorter than one-third of the width, x. enter an expression in the box that represents the perimeter of the rectangle. note: use one variable and a fraction in the answer.

Answer 1

Width of the rectangle = x
Length of the rectangle = (x/3) - 3
Perimeter of the rectangle = 2 (Length + width)
                                          = 2[(x/3) - 3 + x]
                                          = 2[ (x - 9 + 3x)/3]
                                          = 2[(4x - 9)/3]
                                          = (8x - 18)/3
I hope the procedure is clear enough for you to understand and the answer has actually come to your desired help.