document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=691819>Question 691819</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How long will it take for the population of a certain country to double if its annual growth rate is 5%? Round to the nearest year. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #427276 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=427276\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  How long will it take for the population of a certain country to double if its annual growth rate is 5%? Round to the nearest year.<BR>\n" );
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document.write( "Solve:<BR>\n" );
document.write( "2P = P(1.05)^x<BR>\n" );
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document.write( "(1.05)^x = 2<BR>\n" );
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document.write( "x*log(1.05) = log(2)<BR>\n" );
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document.write( "x = log(2)/log(1.05)<BR>\n" );
document.write( "x = 14 when rounded down to the nearest year<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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