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Julian has been secretly depositing $500 in his savings account (earning five percent) every Christmas starting when he was 16 years old. Next year, he wants to surprise his girlfriend with a diamond ring for Christmas. Julian will be 36 and has finally found a girlfriend of which his mother approves. Julian’s savings account is compounded annually. How much will Julian be able to spend on the ring after his $500 contribution this year?
 May 31, 2012
 #1
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500*(1.05) 20+500*(1.05) 19+500*(1.05) 18+500*(1.05) 17+500*(1.05) 16+500*(1.05) 15+500*(1.05) 14+500*(1.05) 13+500*(1.05) 12+500*(1.05) 11+500*(1.05) 10+500*(1.05) 9+500*(1.05) 8+500*(1.05) 7+500*(1.05) 6+500*(1.05) 5+500*(1.05) 4+500*(1.05) 3+500*(1.05) 2+500*(1.05) 1=17359.62590401641141
 Jun 2, 2012

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