The plans for a rectangular deck call for the width to be 10 feet less than the length. Sam wants the deck to have an overall perimeter of 60 feet. What should the length of the deck be?
A) 20 feet
B) 10 feet
C) 35 feet
D) 30 feet

Question

Quizplus · Accepted Answer

The perimeter of a rectangle is given by the formula P = 2l + 2w, where l is the length and w is the width. Given that the width is 10 feet less than the length (w = l - 10), and the perimeter is 60 feet, we can set up the equation 60 = 2l + 2(l - 10). Solving for l gives l = 20 feet.

The Plans for a Rectangular Deck Call for the Width