document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=451521>Question 451521</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Suppose you deposit money in an ivestment account that pays 9% annual interest compounded continuously. About how many years will it take for your initial deposit 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 #310479 by </B><A HREF=/tutors/aboutme.mpl?userid=robertb><B>robertb(5830)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=robertb><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=robertb><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=310479\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2P+=+Pe%5E%280.09t%29 ALIGN=MIDDLE  ALT=\"2P+=+Pe%5E%280.09t%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "==>  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2+=+e%5E%280.09t%29 ALIGN=MIDDLE  ALT=\"2+=+e%5E%280.09t%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "==>  ln2 = 0.09t\r<BR>\n" );
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document.write( "==>  t = ln2/0.09 = 7.7 years, to the nearest tenth of a year.<BR>\n" );
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