document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1172129>Question 1172129</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Mario invest $280 at 8% interest compounded continuously. Write the exponential function to represent the situation and at what time will the total reach $1,000,000 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #797033 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><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=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=797033\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 1000000=280^e^(rt)=280e^0.08t<BR>\n" );
document.write( "3571.43=e^0.08t<BR>\n" );
document.write( "don't round <BR>\n" );
document.write( "ln both sides<BR>\n" );
document.write( "0.08t=102.26 years<BR>\n" );
document.write( "rule of 72, doubling time predicted to be 9 years<BR>\n" );
document.write( "This is more than 11 doubling times<BR>\n" );
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