Posted: 2/22/2008 9:49:33 PM EDT
Hey guys does anyone know how to solve this problem?
if anyone knows, any chance you could very briefly explain it, so i can get on the right track... |
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12000 * x = 1180 12000 = 1180/x 12000/1180 = 1/x 10.1695 = 1/x .098333 = x That's the 41.5% mark between 9% and 11%. We know the average of 9% & 11% is 10% and that yields $1200, which is too much, so the majority must be at 9%. That would be the remainder of 41.5% from 100%, which is 58.5%. 12000(.585) = 7020 12000(.415) = 4980 $7020 @ 9% = 631.8 $4980 @ 11% = 547.8 631.8 + 547.8 = 1179.6 (round up to 1180) |
