document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=816438>Question 816438</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I have no idea where to even start<BR>\n" );
document.write( "A shark tank contains a fill hose and a drainage pipe. The tank can be filled in 4 hours using the hose. The tank can be emptied in 5 hours using the drain. How long will it take to fill the tank with the drain open? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #492534 by </B><A HREF=/tutors/aboutme.mpl?userid=richwmiller><B>richwmiller(17219)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richwmiller><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=richwmiller><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=492534\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> usually we the two times .<BR>\n" );
document.write( "here we subtract the drainage <BR>\n" );
document.write( "x/4-x/5=1<BR>\n" );
document.write( "5x/20-4x/20=1<BR>\n" );
document.write( "x/20=1<BR>\n" );
document.write( "x=20 hours to fill the tank with the drain open\r<BR>\n" );
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