document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=677610>Question 677610</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The hot water faucet takes 4 minutes to fill the tub, and the cold water faucet takes 3 minutes. How long will it take to fill the tub if both are used? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #420960 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=420960\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The hot water faucet takes 4 minutes to fill the tub, and the cold water faucet takes 3 minutes. How long will it take to fill the tub if both are used?<BR>\n" );
document.write( "----<BR>\n" );
document.write( "hot water rate: 1/4 job/min<BR>\n" );
document.write( "cold water rate: 1/3 job/min<BR>\n" );
document.write( "together rate: 1/x job/min<BR>\n" );
document.write( "-------<BR>\n" );
document.write( "Equation:<BR>\n" );
document.write( "1/4 + 1/3 = 1/x<BR>\n" );
document.write( "-----<BR>\n" );
document.write( "3x + 4x = 12<BR>\n" );
document.write( "7x = 12<BR>\n" );
document.write( "x = 12/7 hr = 1 min 42 sec(time to do the job together)<BR>\n" );
document.write( "===============================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );