document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=192981>Question 192981</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Fundraising- The St. Marks Community Barbecue served 250 dinners. A child's plate cost 3.50 and an adult's plate cost 7.00. A total of 1347.50 was collected. How many of each type of plate was served?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #144872 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley77><B>checkley77(12844)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley77><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=144872\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a+c=250 or a=250-c<BR>\n" );
document.write( "7a+3.5c=1,347.50<BR>\n" );
document.write( "7(250-c)+3.5c=1,347.50<BR>\n" );
document.write( "1,750-7c+3.5c=1,347.50<BR>\n" );
document.write( "-3.5c=1,347.5-1,750<BR>\n" );
document.write( "-3.5c=-402.5<BR>\n" );
document.write( "c=-402.50/-3.5<BR>\n" );
document.write( "c=115 is the number of children plates.<BR>\n" );
document.write( "a=250-115=135 is the number of adult plates sold.<BR>\n" );
document.write( "Proof<BR>\n" );
document.write( "7*135+3.5*115=1,374.50<BR>\n" );
document.write( "945+402.5=1,374.50<BR>\n" );
document.write( "1,374.50=1,374.50\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );