document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=62490>Question 62490</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve for n\r<BR>\n" );
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document.write( "400*(1.2^n)-680*(.85^n)=0    \"^n =raised to power of n\"\r<BR>\n" );
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document.write( "I used excel solver and found that n=1.54 but how do you do it and show the work?\r<BR>\n" );
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document.write( "Thanks </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #43258 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=43258\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 400*(1.2^n)=680*(.85^n)<BR>\n" );
document.write( "1.2^n=1.7(0.85^n)<BR>\n" );
document.write( "Take the log of both sides to get:<BR>\n" );
document.write( "nlog(1.2) = log1.7 + nlog0.85<BR>\n" );
document.write( "n[log(1.2)+log(0.85)]=log(1.7)<BR>\n" );
document.write( "n=[log(1.7)]/[log(1.2)+log(0.85)]<BR>\n" );
document.write( "n=26.795851...<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( " </SPAN>\n" );
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