document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=281522>Question 281522</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Martha can rake the leaves in her yard in 4 hours.  Her brother can do the job in 7 hours.  How long will it take them to do the job working together? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #204624 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=204624\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 1/4+1/7=1/x<BR>\n" );
document.write( "(7+4)/4*7=1/x<BR>\n" );
document.write( "11/28=1/x<BR>\n" );
document.write( "11x=28<BR>\n" );
document.write( "x=28/11<BR>\n" );
document.write( "x=2.545 hours working together. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );