document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=868378>Question 868378</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How long will it take $1500 to double it it was invested at 7% interest compounded semi annually?  The answer is in years.  Thank you in advance </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #523524 by </B><A HREF=/tutors/aboutme.mpl?userid=Cromlix><B>Cromlix(4381)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Cromlix><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=Cromlix><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=523524\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 100% + 7% = 107% = 1.07<BR>\n" );
document.write( "$1500 * 1.07^x = $3000<BR>\n" );
document.write( "1.07^x = $3000/$1500<BR>\n" );
document.write( "1.07^x = 2<BR>\n" );
document.write( "Take logs of both sides.<BR>\n" );
document.write( "x log1.07 = log2<BR>\n" );
document.write( "x         = log2/log1.07<BR>\n" );
document.write( "x = 10.24 years.<BR>\n" );
document.write( "Hope this helps. :-) </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );