document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=445332>Question 445332</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Sam can paint the fence in 9 hours and Bob can paint it in 6 hours. How long will it take if Sam and Bob paint the fence together?\r<BR>\n" );
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document.write( "I tried 1/9 + 1/6 = 1/15 so I got the answer of \"3 hours\" but it was marked wrong. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #307778 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=307778\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> that's because it is wrong.\r<BR>\n" );
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document.write( "1/9+1/6= 6/54+9/54=15/54=5/18 not 1/15<BR>\n" );
document.write( "how on earth did you get an answer of three from <BR>\n" );
document.write( "1/9+1/6=1/15 there is no variable?<BR>\n" );
document.write( "You just through a bunch of numbers on your paper.\r<BR>\n" );
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document.write( "Together they do one -1- job<BR>\n" );
document.write( "x is the number of hours they work<BR>\n" );
document.write( "x/9+x/6=1<BR>\n" );
document.write( "multiply by 18<BR>\n" );
document.write( "2x+3x=18<BR>\n" );
document.write( "5x=18<BR>\n" );
document.write( "x=18/5 =3 3/5 hrs<BR>\n" );
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