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posted by mel on Wednesday, January 28, 2009 at 2:39am.
Charlie wants to buy a $900 TV in 9 months. How much should he invest now at 17% simple interest to have the money in 9 months?
9 months is .75 years so interest % is 17*.75 = 12.75% 900 = 1.1275 x x = 900/1.1275
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