document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=451755>Question 451755</A>: <I><SPAN STYLE=\"word-break: break-all;\"> robot A can weld a fender in 5 minutes, another can finish it in 3 minutes. Robot A starts welding for two minutes, then the other helps finish. how much longer does it take to finish the fender? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #311644 by </B><A HREF=/tutors/aboutme.mpl?userid=lwsshak3><B>lwsshak3(11628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lwsshak3><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=311644\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> robot A can weld a fender in 5 minutes, another can finish it in 3 minutes. Robot A starts welding for two minutes, then the other helps finish. how much longer does it take to finish the fender?<BR>\n" );
document.write( "..<BR>\n" );
document.write( "let x=minutes longer to finish the fender<BR>\n" );
document.write( "Robot A work rate=1/5<BR>\n" );
document.write( "Helper robot work rate=1/3<BR>\n" );
document.write( "Helper robot works for x minutes<BR>\n" );
document.write( "Robot A works for x+2 minutes<BR>\n" );
document.write( "(1/5)(x+2)+(1/3)x=100% of job=1<BR>\n" );
document.write( "LCD=15<BR>\n" );
document.write( "3x+6+5x=15<BR>\n" );
document.write( "8x=9<BR>\n" );
document.write( "x=9/8 minutes<BR>\n" );
document.write( "ans:<BR>\n" );
document.write( "It takes 9/8 minutes longer to finish the fender </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );