document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=821318>Question 821318</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Rosa has decided to sell pet rocks at an art fair for $5 each. She paid $50 to rent a table at the fair and it costs her $2 to package each rock with a set of instructions. For what numbers of sales will Rosa 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 #494008 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=494008\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  Rosa has decided to sell pet rocks at an art fair for $5 each. She paid $50 to rent a table at the fair and it costs her $2 to package each rock with a set of instructions. For what numbers of sales will Rosa make a profit?<BR>\n" );
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document.write( "Cost:: C(x) = 50+2x where \"x\" is the number of rocks<BR>\n" );
document.write( "Revenue: R(x) = 5x <BR>\n" );
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document.write( "Profit = R(x)-C(x)<BR>\n" );
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document.write( "Solve 5x - (50+2x) > 0<BR>\n" );
document.write( "3x > 50<BR>\n" );
document.write( "x > 16 2/3<BR>\n" );
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document.write( "Ans: She needs at least 16 sales.<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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