The perimeter and ration of the length to the width of a rectangle is given

Question

Perimeter =220 inches l:w =13:9

Answer 1

Natalia:

We know P = 2*(L+W) = 220 so already we know L+W =110

Since L/W = 13/9 9L = 13W or L=(13W)/9

L+W = (13W)/9 + W =110 or (22W)/9 =110 Solve for W and then L