document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=445742>Question 445742</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The present concentration of carbon dioxide in the atmosphere is 354 parts per million and is increasing at a continuous rate of 4%. How many years will it take for concentration to reach 500 parts per million\r<BR>\n" );
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document.write( "i know the continuos interest equation is APe^(rt)<BR>\n" );
document.write( "e. 2.718 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #306980 by </B><A HREF=/tutors/aboutme.mpl?userid=scott8148><B>scott8148(6628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=scott8148><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=scott8148><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=306980\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 500 = 354 e^(.04t)\r<BR>\n" );
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document.write( "500/354 = e^(.04t)\r<BR>\n" );
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document.write( "ln(500/354) = .04t\r<BR>\n" );
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document.write( "[ln(500/354)] / .04 = t </SPAN>\n" );
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