document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=244928>Question 244928</A>: <I><SPAN STYLE=\"word-break: break-all;\"> john needs to rent a theatre for a concert. The theatre charge $700 plus $3per person. john plans to selltickets for $10 per person.  let C represent the cost of the eventand N the number of people attending the concert.<BR>\n" );
document.write( "Write a linear system to represent the situation.<BR>\n" );
document.write( "How many tickets must be sold to break evan?<BR>\n" );
document.write( "what will be the total cost be? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #179101 by </B><A HREF=/tutors/aboutme.mpl?userid=Theo><B>Theo(13342)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Theo><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=Theo><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=179101\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> c = 700 + 3 * n\r<BR>\n" );
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document.write( "c = cost<BR>\n" );
document.write( "n = number of persons attending.\r<BR>\n" );
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document.write( "r = 10 * n\r<BR>\n" );
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document.write( "r = revenue<BR>\n" );
document.write( "n = number of persons attending.\r<BR>\n" );
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document.write( "he will break even when r = c\r<BR>\n" );
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document.write( "this makes:\r<BR>\n" );
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document.write( "10 * n = 700 + 3 * n\r<BR>\n" );
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document.write( "subtract 3 * n from both sides of this equation to get:\r<BR>\n" );
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document.write( "7 * n = 700\r<BR>\n" );
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document.write( "divide both sides of this equation by 7 to get:\r<BR>\n" );
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document.write( "n = 100\r<BR>\n" );
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document.write( "he should break even when 100 peopled attend.\r<BR>\n" );
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document.write( "cost for 100 people = 700 + 300 = 1000\r<BR>\n" );
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document.write( "revenue for 100 people = 10 * 100 = 1000\r<BR>\n" );
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document.write( "that's the break even point.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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