document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=134543>Question 134543</A>: <I><SPAN STYLE=\"word-break: break-all;\"> the revenue R in dollars for the sale of x items at Joe's Dollar Store can be modeled by the equation R=1400x-5x^2. what number of items would provide a revenue of $16,080? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #98422 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley71><B>checkley71(8403)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley71><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=98422\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> R=1400X-5X^2<BR>\n" );
document.write( "16,080=1400X^2-5X^2<BR>\n" );
document.write( "5X^2-1400X+16,080=0<BR>\n" );
document.write( "5(X^2-280X+3216=0<BR>\n" );
document.write( "5(X-268)(X-12)=0<BR>\n" );
document.write( "X-268=0<BR>\n" );
document.write( "X=268 ANSWER.<BR>\n" );
document.write( "X-12=0<BR>\n" );
document.write( "X=12 ANSWER.\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );