document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=50505>Question 50505</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Help...\r<BR>\n" );
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document.write( "The population P of a certain culture is expected to be given by a model P=100e^rt where r is a constant to be determined and t is a number of days since the original population of 100 was established.  Find the value of r if the population is expected to reach 200 in 3 days?\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #33590 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=33590\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> P=100e^rt <BR>\n" );
document.write( "200=100e^3r<BR>\n" );
document.write( "2=e^3r<BR>\n" );
document.write( "Take the natural log to get:<BR>\n" );
document.write( "3r=ln2<BR>\n" );
document.write( "3r=0.69314...<BR>\n" );
document.write( "r=0.23105\r<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "stan H. </SPAN>\n" );
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