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The top floor is rectangular and has perimeter 520 ft The width of top floor measres 20 ft more than one-half its length What are the dimensions of the top floor?
Wiki User
∙ 13y ago
Let the width be 1/2x+20 and the length be x:
2(width+length) = perimeter
2(1/2x+20+x) = 520 ft
x+40+2x = 520
x+2x = 520-40
3x = 480
x = 160
Therefore: width = 100 ft and length = 160 ft
Check: 2(100+160) = 520 ft
Wiki User
∙ 13y ago
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