document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=831034>Question 831034</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the final amount of a $200 investment after 18 years at 7.3% annual interest compounded continuously. How long will it take for the initial investment to triple? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #501072 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=501072\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Find the final amount of a $200 investment after 18 years at 7.3% annual interest compounded continuously.<BR>\n" );
document.write( "A(t) = P*e^(rt)<BR>\n" );
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document.write( "A(18) = 200*e^(0.073*18) = $744.21<BR>\n" );
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document.write( "How long will it take for the initial investment to triple?<BR>\n" );
document.write( "Solve: e^(0.073t) = 3<BR>\n" );
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document.write( "0.073t = ln(3)<BR>\n" );
document.write( "t = 15.05 years<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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document.write( " </SPAN>\n" );
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