document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=242728>Question 242728</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I have tried repeatedly to figure these problems. I have 28 problems so I am getting help with 6. Thank you so much for all your help!!!\r<BR>\n" );
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document.write( "One pipe can fill a tank in 40 minutes and a larger pipe can fill it in 25 minutes. After the smaller pipe has been operating for 30 minutes the larger pipe is also turned on. How many more minutes does it take to fill the tank?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #177684 by </B><A HREF=/tutors/aboutme.mpl?userid=scott8148><B>scott8148(6628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=scott8148><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=scott8148><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=177684\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> after 30 min, the tank is 3/4 full (30/40); so the two pipes only have to fill 1/4 of the tank\r<BR>\n" );
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document.write( "let x=\"remaining minutes to fill\"\r<BR>\n" );
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document.write( "x/40 + x/25 = 1/4\r<BR>\n" );
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document.write( "multiplying by 200 (LCD) ___ 5x + 8x = 50\r<BR>\n" );
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document.write( "13x = 50 ___ x = 50/13 (a little less than 4 min) </SPAN>\n" );
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