document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=829965>Question 829965</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Manny has his money in a savings account earning 3% interest. How long will it take his money to double? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #500265 by </B><A HREF=/tutors/aboutme.mpl?userid=LinnW><B>LinnW(1048)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=LinnW><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=LinnW><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=500265\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> assume we are starting with $100\r<BR>\n" );
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document.write( "(100)*(1+3%)^n = 200<BR>\n" );
document.write( "(100)*(1.03)^n = 200<BR>\n" );
document.write( "divide each side by 100<BR>\n" );
document.write( "(1.03)^n = 2<BR>\n" );
document.write( "take log of each side<BR>\n" );
document.write( "log((1.03)^n)=log(2)<BR>\n" );
document.write( "nlog(1.03)=log(2)<BR>\n" );
document.write( "divide each side by log(1.03)<BR>\n" );
document.write( "n = log(2)/log(1.03) = 23.449 years </SPAN>\n" );
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