The length of a rectangle is equal to three times its width. If the perimeter is equal to 200 feet, what is the length of the rectangle?

Question

anonymous · Answer

|dw:1421716029047:dw|

The perimeter is the sum of all sides. You're going to want to add the 4 sides together. Since there are two of each side, you're going to have to count them all.

2(3w)+2w=200     (I multiplied them by two to count in all 4 sides.)
6w+2w=200
8w=200                 (solve for x by dividing both sides by 8)
w=25


The width is 25 feet, and the length is 75 feet (three times the width)

|dw:1421716207496:dw|