document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=275369>Question 275369</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Working together, Sarah and Heidi can milk the cows in 6 hours. If they work alone, it takes Heidi 9 hours longer than it takes Sarah. How long would it take Heidi to milk the cows alone? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #200872 by </B><A HREF=/tutors/aboutme.mpl?userid=scott8148><B>scott8148(6628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=scott8148><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/cgi-bin/show-face.mpl?user=scott8148><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=200872\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> (6 / h) + [6 / (h - 9)] = 1\r<BR>\n" );
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document.write( "6h - 54 + 6h = h^2 - 9h\r<BR>\n" );
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document.write( "0 = h^2 - 21h + 54\r<BR>\n" );
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document.write( "0 = (h - 18) (h - 3)\r<BR>\n" );
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document.write( "h = 18\r<BR>\n" );
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document.write( "h = 3 does not work because 9 less than 3 would be negative time ... </SPAN>\n" );
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