document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=619780>Question 619780</A>: <I><SPAN STYLE=\"word-break: break-all;\"> using a particular hose take 4 hours to fill a tank. When a second hose is used, both hoses can fill the tank in 1 hrs. how long would it take to fil the tank using only the second hose </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #389787 by </B><A HREF=/tutors/aboutme.mpl?userid=nerdybill><B>nerdybill(7384)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=nerdybill><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=nerdybill><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=389787\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">     using a particular hose take 4 hours to fill a tank. When a second hose is used, both hoses can fill the tank in 1 hrs. how long would it take to fil the tank using only the second hose<BR>\n" );
document.write( ".<BR>\n" );
document.write( "Let x = time (hours) it takes 2nd hose to fill tank alone<BR>\n" );
document.write( "then<BR>\n" );
document.write( "1(1/4 + 1/x) = 1<BR>\n" );
document.write( "(1/4 + 1/x) = 1<BR>\n" );
document.write( "multiplying both sides by 4x:<BR>\n" );
document.write( "(x + 4) = 4x<BR>\n" );
document.write( "4 = 3x<BR>\n" );
document.write( "4/3 hours = x<BR>\n" );
document.write( "or<BR>\n" );
document.write( "1 and 1/3 hours = x<BR>\n" );
document.write( "or<BR>\n" );
document.write( "1 hour and 20 minutes = x<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );