document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1029265>Question 1029265</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A concerts promoters profit P(s), in dollars, can be modelled by the function<BR>\n" );
document.write( "P(s)=+8sē+950s-2250<BR>\n" );
document.write( "Where s is the price of a ticket, in dollars.<BR>\n" );
document.write( "a) if the promoter wants to earn a profit of $20 000, what should the ticket price be? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #644329 by </B><A HREF=/tutors/aboutme.mpl?userid=fractalier><B>fractalier(6550)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=fractalier><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=fractalier><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=644329\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Well, let's set P(s) equal to $20,000 and see what s equals...<BR>\n" );
document.write( "P(s) = 20000 = 8sē + 950s - 2250<BR>\n" );
document.write( "Subtract 20000 and get<BR>\n" );
document.write( "8s^2 + 950s - 22250 = 0<BR>\n" );
document.write( "Solving this, using the quadratic formula gives<BR>\n" );
document.write( "s = $20.04 and s = -$139.79<BR>\n" );
document.write( "So I am thinking $20 a ticket...let's see...<BR>\n" );
document.write( "P(20) = 8*(20)^2 + 950(20) - 2250 = 19950<BR>\n" );
document.write( "not quite $20,000...<BR>\n" );
document.write( "Must be $20.04...<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );