document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=722745>Question 722745</A>: <I><SPAN STYLE=\"word-break: break-all;\"> <BR>\n" );
document.write( "A musician is planning to market a CD. The fixed costs are $1020 and the variable costs are $3 per CD. The wholesale price of the CD will be $9. For the artist to make a profit, revenues must be greater than costs.<BR>\n" );
document.write( "How many CDs, x, must be sold for the musician to make a profit? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #442862 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley79><B>checkley79(3341)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley79><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=442862\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 1020+3x<=9x<BR>\n" );
document.write( "3x-9x<=-1020<BR>\n" );
document.write( "-6x<=-1020<BR>\n" );
document.write( "x>=1020/6 note the sign change due to dividing by a negative value.<BR>\n" );
document.write( "x>=170 CD's need to be sold to break even.<BR>\n" );
document.write( "Proof:<BR>\n" );
document.write( "1020+3*170<=9*170<BR>\n" );
document.write( "1020+510<=1530<BR>\n" );
document.write( "1530<=1530 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );