document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=188134>Question 188134</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If Sally can paint a house in 4 hours, and John can paint the same house in 6 hours, how long will it take for both of them to paint the house together? \r<BR>\n" );
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document.write( "I have several question like this and don't know how to set it up. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #141013 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=141013\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> If Sally can paint a house in 4 hours, and John can paint the same house in 6 hours, how long will it take for both of them to paint the house together? <BR>\n" );
document.write( "I have several question like this and don't know how to set it up.<BR>\n" );
document.write( "------------<BR>\n" );
document.write( "Sally DATA:<BR>\n" );
document.write( "Time = 4 hr/job ; rate = 1/4 job/hr<BR>\n" );
document.write( "---------------------------<BR>\n" );
document.write( "John DATA:<BR>\n" );
document.write( "Time = 6 hr/job ; rate = 1/6 job/hr<BR>\n" );
document.write( "-----------------------------<BR>\n" );
document.write( "Together DATA:<BR>\n" );
document.write( "Time = x hr/job ; rate = 1/x job/hr<BR>\n" );
document.write( "========================================<BR>\n" );
document.write( "Equation:<BR>\n" );
document.write( "rate + rate = together rate<BR>\n" );
document.write( "1/4 + 1/6 = 1/x<BR>\n" );
document.write( "----<BR>\n" );
document.write( "Multiply thru by 12x to get:<BR>\n" );
document.write( "3x + 2x = 12<BR>\n" );
document.write( "5x = 12<BR>\n" );
document.write( "x = 12/5 hr or 2 hr and 24 minutes<BR>\n" );
document.write( "=======================================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );