
Mark M. answered 12/04/14
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Mathematics Teacher - NCLB Highly Qualified
w = width
2w + 20 = length
2w + 2(2w + 20) = 220
2w + 4w + 40 = 220
6w + 40 = 220
6w = 180
w = 30
The width is 30 feet and the length is 80 feet.