document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=259462>Question 259462</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a charter company will provide for a fare of $60 each for 20 or fewer passengers. for each passenger in excess of 20, the fare is decreased $2 per person for everyone what number of passengers will produce the greatest revenue for the company\r<BR>\n" );
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document.write( "OHH I REALLY NEED HELP WITH THIS!PLEASE! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #191006 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=191006\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a charter company will provide for a fare of $60 each for 20 or fewer passengers.<BR>\n" );
document.write( " for each passenger in excess of 20, the fare is decreased $2 per person for everyone what number of passengers will produce the greatest revenue for the company <BR>\n" );
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document.write( "Let x = no. of passengers greater than 20<BR>\n" );
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document.write( "Revenue = no. of passengers * price per passenger<BR>\n" );
document.write( "r = (20+x)*(60-2x)<BR>\n" );
document.write( "FOIL<BR>\n" );
document.write( "r = 1200 - 40x + 60x - 2x^2<BR>\n" );
document.write( "A quadratic equation<BR>\n" );
document.write( "-2x^2 + 20x + 1200 = 0<BR>\n" );
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document.write( "We can find x that gives the max revenue by finding the axis of symmetry; x = -b/(2a)<BR>\n" );
document.write( "In this equation a = -2; b = 20<BR>\n" );
document.write( "x = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28-20%29%2F%282%2A-2%29 ALIGN=MIDDLE  ALT=\"%28-20%29%2F%282%2A-2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "x = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28-20%29%2F%28-4%29 ALIGN=MIDDLE  ALT=\"%28-20%29%2F%28-4%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "x = +5<BR>\n" );
document.write( ";<BR>\n" );
document.write( "We can say 25 passengers will give max revenue </SPAN>\n" );
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