document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=361445>Question 361445</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Working alone John can pain a house in 7 hours. If Joe and John paint it together they can finish it in 3 hours.\r<BR>\n" );
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document.write( "How long does it take Joe to pain the house? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #257714 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=257714\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Working alone John can paint a house in 7 hours. If Joe and John paint it together they can finish it in 3 hours. h<BR>\n" );
document.write( "How long does it take Joe to paint the house?<BR>\n" );
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document.write( "John rate = 1/7 job/hr<BR>\n" );
document.write( "together rate = 1/3 job/hr<BR>\n" );
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document.write( "Joe rate = 1/x job/hr<BR>\n" );
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document.write( "Equation:<BR>\n" );
document.write( "rate + rate = together rate<BR>\n" );
document.write( "1/7 + 1/x = 1/3<BR>\n" );
document.write( "3x + 21 = 7x<BR>\n" );
document.write( "4x = 21<BR>\n" );
document.write( "x = 21/4 = 5 1/4 hrs (Joe's time to paint the house alone)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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