document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=168250>Question 168250</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Two bike trails have a total length of 20 miles. If the product of the length of the trails is 91, find the length of each trail. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #124079 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley77><B>checkley77(12844)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley77><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=124079\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> X+Y=20 OR X=20-Y<BR>\n" );
document.write( "XY=91<BR>\n" );
document.write( "(20-Y)Y=91<BR>\n" );
document.write( "20Y-Y^2-91=0<BR>\n" );
document.write( "Y^2-20Y+91=0<BR>\n" );
document.write( "(Y-13)(Y-7)=0<BR>\n" );
document.write( "Y-13=0<BR>\n" );
document.write( "Y=13 ANS.<BR>\n" );
document.write( "Y-7=0<BR>\n" );
document.write( "Y=7 ANS.<BR>\n" );
document.write( "PROOF:<BR>\n" );
document.write( "7*13=91<BR>\n" );
document.write( "91=91 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );