document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=472409>Question 472409</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The Art of Problem Solving has begun selling a cookbook called \What would Euler eat?\"<BR>\n" );
document.write( "If the price of the cookbook is n dollars (n < 72), then it will sell 720 - 10n copies. What<BR>\n" );
document.write( "price will maximize the total revenue we receive for the books? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #323884 by </B><A HREF=/tutors/aboutme.mpl?userid=richard1234><B>richard1234(7193)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richard1234><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=richard1234><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=323884\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Wow, I'm actually an AoPS member (but then there's no book called \"What would Euler eat\")...\r<BR>\n" );
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document.write( "Assuming it sells 720 - 10n books at a price of n dollars, we can say that the revenue is n(720 - 10n) = -10n^2 + 720n. This is a parabola, in which the vertex occurs at the vertex n = 720/(2*10) = $36. </SPAN>\n" );
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