document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=139543>Question 139543</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I know the formula for this type of problem, but I can't seem to turn it around to get the answer to this problem.<BR>\n" );
document.write( "What is the initial investment if you end up with $30,000 after 18 years of instantaneous interest at 10%.<BR>\n" );
document.write( "Please help! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #101734 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=101734\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> What is the initial investment if you end up with $30,000 after 18 years of instantaneous interest at 10%.<BR>\n" );
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document.write( "A(t) = Pe^(rt)<BR>\n" );
document.write( "30000 = Pe^(0.10*18)<BR>\n" );
document.write( "30000 = Pe^1.8<BR>\n" );
document.write( "P = 30000/6.0496<BR>\n" );
document.write( "P = $4958.97<BR>\n" );
document.write( "================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );