A rectangle shaped parking lot is to have a perimeter of 506 yards. If the width must be 100 yards b

A rectangle shaped parking lot is to have a perimeter of 506 yards. If the width must be 100 yards because of a building code, what will the length need to be?

Perimeter of a rectangle (P) with length (l) and width (w) is:
2l + 2w = P

We're given P = 506 and w = 100. We plug this in to the perimeter formula and get:
2l + 2(100) = 506

To solve this equation for l, we type it in our search engine and we get:
l = 153