document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=187121>Question 187121</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0534400507/algebrahomeworkh></A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> It takes amy twice as longt to deliver papers ai it does nancy.  How long would it take each girl to deliver the papers by herself if they can deliver the papers together in 40 minutes. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #140263 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=140263\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x*2x/(x+2x)=40<BR>\n" );
document.write( "2x^2/3x=40<BR>\n" );
document.write( "2x^2=3x*40<BR>\n" );
document.write( "2x^2=120x<BR>\n" );
document.write( "2x^2-120x=0<BR>\n" );
document.write( "2x(x-60)=0<BR>\n" );
document.write( "2x=0 <BR>\n" );
document.write( "x=0/2<BR>\n" );
document.write( "x=0 ans.<BR>\n" );
document.write( "x-60=0<BR>\n" );
document.write( "x=60 ans.<BR>\n" );
document.write( "Proof:<BR>\n" );
document.write( "60*120/(60+120)=40<BR>\n" );
document.write( "7200/180=40<BR>\n" );
document.write( "40=40\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );