document.write( "Question 585428: PLZ help!! i dunno if i did this right?\r
\n" ); document.write( "\n" ); document.write( "Howard put $35,000 into a balanced mutual fund 15 years ago and his investment today is worth $121,587. What was his average annual rate of return?\r
\n" ); document.write( "\n" ); document.write( "my answer is 16.5%
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Algebra.Com's Answer #373363 by ankor@dixie-net.com(22740)\"\" \"About 
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Howard put $35,000 into a balanced mutual fund 15 years ago and his investment today is worth $121,587.
\n" ); document.write( " What was his average annual rate of return?
\n" ); document.write( "let r = interest rate in decimals
\n" ); document.write( ";
\n" ); document.write( "35000*(1+r)^15 = 121587
\n" ); document.write( "(1+r)^15 = \"121587%2F35000\"
\n" ); document.write( "(1+r)^15 = 3.4739
\n" ); document.write( "15*log(1+r) = log(3.4739)
\n" ); document.write( "log(1+r) = \".54081%2F15\"
\n" ); document.write( "log(1+r) = ,03054
\n" ); document.write( "find the antilog (\"10%5Ex\")
\n" ); document.write( "1 + r = 1.08656
\n" ); document.write( "r = 1.08656 - 1
\n" ); document.write( "r = .08656 which 8.656% rate of return
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