L = W + 2
P = 2L + 2W
80 = 2(W + 2) + 2W
80 = 2W + 4 + 2W
80 = 4W + 4
76 = 4W
19 = W
The length of Karen's living room is 2ft longer than the width. The perimeter is 80ft. Find the length and the width.
Can someone please explain to me how you find the answers? Thanks a ton!
2 answers
In this case L+W=31.5ft, and L-W=2.5ft. So it is 17 feet long and 14.5ft wide.
2 answers