document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=129117>Question 129117</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A water main for a street is being laid using particular kind of pipe that comes in either 18-foot sections or 20-foot sections. The designer has determined that the water main would require 14 fewer sections of 20-foot pipe than if 18-foot sections were used. Find the total length of the water main.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #94386 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=94386\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A water main for a street is being laid using particular kind of pipe that comes in either 18-foot sections or 20-foot sections. The designer has determined that the water main would require 14 fewer sections of 20-foot pipe than if 18-foot sections were used. Find the total length of the water main.<BR>\n" );
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document.write( "Let the total length of the water main be x feet.<BR>\n" );
document.write( "# of 18 ft - # of 20 ft = 14<BR>\n" );
document.write( "x/18 - x/20 = 14<BR>\n" );
document.write( "(20x-18x)/20*18 = 14<BR>\n" );
document.write( "2x = 20*18*14<BR>\n" );
document.write( "x = 10*18*14<BR>\n" );
document.write( "x = 2520 ft.<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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