document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=450599>Question 450599</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Raul can plumb a house in 48 hours. Mira can do it in 36 hours. How long will it take them if they work together? I need total details and explanantion. Thank you! belle_g50@yahoo.com </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #309914 by </B><A HREF=/tutors/aboutme.mpl?userid=rwm><B>rwm(914)</B></A><img src=\"/images/stars/stars-11.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rwm><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=309914\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Well good luck with that.<BR>\n" );
document.write( "What is an \"explanantion\" ?<BR>\n" );
document.write( "Do you mean \"explanation\"?<BR>\n" );
document.write( "We know the time has to be less than 36. Why?\r<BR>\n" );
document.write( "\n" );
document.write( "x/48+x/36=1<BR>\n" );
document.write( "I could multiply by everything by 1728 which is 48*36 <BR>\n" );
document.write( "and get <BR>\n" );
document.write( "36x+48x=1728\r<BR>\n" );
document.write( "\n" );
document.write( "but there is an easier way.<BR>\n" );
document.write( "We factor 36 and 48<BR>\n" );
document.write( "since both are multiples of 12<BR>\n" );
document.write( "x/(4*12)+x/(3*12)=1<BR>\n" );
document.write( "multiply by 12<BR>\n" );
document.write( "x/4+x/3=12<BR>\n" );
document.write( "multiply by 12 again<BR>\n" );
document.write( "3x+4x=144<BR>\n" );
document.write( "7x=144<BR>\n" );
document.write( "x=144/7 <BR>\n" );
document.write( "x=20.57 hrs<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );