document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=908930>Question 908930</A>: <I><SPAN STYLE=\"word-break: break-all;\"> With both hot and cold water running, a bathtub can be filled in 8 min. The drain will empty the tub in 10 min. A child turns both faucets on and leaves the drain open. How long will it be until the bathtub starts to overflow? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #551385 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=551385\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 1/a+1/b=1/x<BR>\n" );
document.write( "1/8+1/-10=1/x<BR>\n" );
document.write( "-10/-80+8/-80=1/x<BR>\n" );
document.write( "-2/-80=1/x<BR>\n" );
document.write( "x=-80/-2<BR>\n" );
document.write( "x=40 minutes working together<BR>\n" );
document.write( "check<BR>\n" );
document.write( "x/a+x/b=1<BR>\n" );
document.write( "x/8+x/-10=1<BR>\n" );
document.write( "40/8+40/-10=1<BR>\n" );
document.write( "5+-4=1<BR>\n" );
document.write( "1=1<BR>\n" );
document.write( "ok<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );