document.write( "Question 189268: I need help ASAP its for a test...
\n" ); document.write( "please and thank you\r
\n" ); document.write( "\n" ); document.write( "Susan invested $5000.00 at 10% compounded semiannually. In how many years will Susan's investment have tripled? Round your answers to the nearest tenth of a year.\r
\n" ); document.write( "\n" ); document.write( "A) 11.3 years B) 11.0 years C) 1.3 years D) 6.9 years
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Algebra.Com's Answer #141995 by Mathtut(3670)\"\" \"About 
You can put this solution on YOUR website!
\"FV=P%281%2Br%2Fn%29%5Ent\"
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\n" ); document.write( "\"15000=5000%281%2B.1%2F2%29%5E2t\"
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\n" ); document.write( "\"3=1.05%5E2t\"
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\n" ); document.write( "ln(3)=ln \"%281.05%5E2t%29\"
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\n" ); document.write( "\"1.09=2t%28.0488%29\"
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\n" ); document.write( "22.51=2t
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\n" ); document.write( "t=11.3
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