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quadratic word problem: a zamboni is resurfacing the ice on a rectangular rink 25 m wide by 40 m long. The operator starts at the centre of the rink and makes uniform rectangular passes over the...

kimiloli

by kimiloli at June 13, 2010

surface gradually working outward in a concentric way. After only 10% of the surface is complete the machine breaks down. find the width of the remaining strip of unfinished ice surface.

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The width is 23.71 and the length is 37.94 in approximation .The area of the unfinished ice surface is 90% of the entire rink,meaning it is 900m^2. i tried , hope it helps

clark017 clark017 June 16, 2010

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if you have a rectangle who's width is 25m and length is 40m, the area would be 1000m^2. If you subtract 10% of the area, he would have 900m^2 left. Divide that by 40m to get the width of 22.5m. I hope this helps, but I'm not quite so clear as to what the question is asking. Good luck!

CLieberman CLieberman June 14, 2010

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