document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=25817>Question 25817</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The problem is:<BR>\n" );
document.write( "A DVD company wants to maximize its revenue. the company now sells dvd's for $40 each and they have 6000 customers. a study suggests that for every $2.00 increase in price they will lose 200 customers. what should be the selling price to maximize the company's revenue? what will that revenue be?\r<BR>\n" );
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document.write( "So far I've written an equation: <BR>\n" );
document.write( "let R= revenue<BR>\n" );
document.write( "let x= # of $2 increases<BR>\n" );
document.write( "R=(6000-200x)(40+x)\r<BR>\n" );
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document.write( "When i try to solve, I get: x=-5 and R=245000 but I know x can not be negative. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #13902 by </B><A HREF=/tutors/aboutme.mpl?userid=Paul><B>Paul(988)</B></A><img src=\"/images/stars/stars-11.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Paul><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=13902\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let x be the $ 2 increase.<BR>\n" );
document.write( "cost of DVD:<BR>\n" );
document.write( "2(x+40)<BR>\n" );
document.write( "2x+80<BR>\n" );
document.write( "DVD sold = 6000-200x<BR>\n" );
document.write( "(2x+80)(6000-200x)<BR>\n" );
document.write( "-400x^2+12000x+480000-16000x<BR>\n" );
document.write( "-400x^2-4000x+480000<BR>\n" );
document.write( "400x^2+4000x-480000=0,x<BR>\n" );
document.write( "x^2+40x-1200=0<BR>\n" );
document.write( "CAN YOU SOLVE IT FROM ZTHERE if not e-mail me back.<BR>\n" );
document.write( "you'll get x=30<BR>\n" );
document.write( "Hence, the revenue is 30.<BR>\n" );
document.write( "PAUL. </SPAN>\n" );
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