document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=164170>Question 164170</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A group can charter a particular aircraft at a fixed total cost. If 36 people charter the aircraft rather than 40 people, then the cost per person is greater by $12. What is the cost per person if 40 people charter the aircraft </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #120955 by </B><A HREF=/tutors/aboutme.mpl?userid=alicealc><B>alicealc(293)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=alicealc><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=120955\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let:<BR>\n" );
document.write( "the cost per person if 40 people charter = x<BR>\n" );
document.write( "then the cost per person if 36 people charter = x + 12\r<BR>\n" );
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document.write( "because the total cost is fixed:<BR>\n" );
document.write( "36*(x + 12) = 40*x<BR>\n" );
document.write( "<=> 36x + 432 = 40x<BR>\n" );
document.write( "<=> 432 = 40x - 36x<BR>\n" );
document.write( "<=> 432 = 4x<BR>\n" );
document.write( "<=> x = 432/4 = 108\r<BR>\n" );
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document.write( "so the cost per person if 40 people charter is $108 </SPAN>\n" );
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