document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=868894>Question 868894</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hi, <BR>\n" );
document.write( "i was wondering whether you were able to help me rearrange the following formula to find r;<BR>\n" );
document.write( "No=150<BR>\n" );
document.write( "C=450 <BR>\n" );
document.write( "N=C/(1+((C-No)/No))*e^-r*t <BR>\n" );
document.write( "Thankyou! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #523891 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39620)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=523891\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=N=C%2F%281%2B%28%28C-No%29%2FNo%29%29%2Ae%5E-r%2At ALIGN=MIDDLE  ALT=\"N=C%2F%281%2B%28%28C-No%29%2FNo%29%29%2Ae%5E-r%2At\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Rendering is failing on the equation.  I see nothing wrong related to just the render-ability.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "Including grouping specifically of -rt gives this when rendered:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=N=C%2F%281%2B%28%28C-No%29%2FNo%29%29%2Ae%5E%28-r%2At%29 ALIGN=MIDDLE  ALT=\"N=C%2F%281%2B%28%28C-No%29%2FNo%29%29%2Ae%5E%28-r%2At%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "Multiply left and right sides by <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2B%28C-No%29%2FNo ALIGN=MIDDLE  ALT=\"1%2B%28C-No%29%2FNo\"   DISABLED_style= \"max-width:90%; height:auto;\" >.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=N%281%2B%28C-No%29%2FNo%29=Ce%5E%28-rt%29 ALIGN=MIDDLE  ALT=\"N%281%2B%28C-No%29%2FNo%29=Ce%5E%28-rt%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "Multiply both sides by <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2FC ALIGN=MIDDLE  ALT=\"1%2FC\"   DISABLED_style= \"max-width:90%; height:auto;\" >.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28N%2FC%29%281%2B%28C-No%29%2FNo%29=e%5E%28-rt%29 ALIGN=MIDDLE  ALT=\"%28N%2FC%29%281%2B%28C-No%29%2FNo%29=e%5E%28-rt%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=ln%28%28N%2FC%29%281%2B%28C-No%29%2FNo%29%29=-rt ALIGN=MIDDLE  ALT=\"ln%28%28N%2FC%29%281%2B%28C-No%29%2FNo%29%29=-rt\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight_green%28r=%281%2Ft%29%2Aln%28%28N%2FC%29%281%2B%28C-No%29%2FNo%29%29%29 ALIGN=MIDDLE  ALT=\"highlight_green%28r=%281%2Ft%29%2Aln%28%28N%2FC%29%281%2B%28C-No%29%2FNo%29%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >, and then this is one of the ways to show the symbolic form of r, if the equation as shown is what you really intended.  You can simply substitute the values you need and perform the computation for r. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );