document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=443501>Question 443501</A>: <I><SPAN STYLE=\"word-break: break-all;\"> it takes x hours to fill a swimming pool when only hose 1 is used.  It takes y hours to fill the pool if only hose 2 is used.  Write a rational expression to show how long How takes to fill the pool if both hoses are used.  Can you explain the answer and how you got to it? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #309276 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=309276\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> z/x+z/y=1<BR>\n" );
document.write( "z is the time together<BR>\n" );
document.write( "x is the time for one hose<BR>\n" );
document.write( "y is the time for hose two<BR>\n" );
document.write( "1 is the whole job<BR>\n" );
document.write( "hose one does 1/x per hour<BR>\n" );
document.write( "hose two does 1/y per hour<BR>\n" );
document.write( "the whole job takes z hours<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );