document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=182533>Question 182533</A>: <I><SPAN STYLE=\"word-break: break-all;\"> There are 640 people at a play. The admission price was $3 for adults and $1 for children. The admission receipts were $1220. How many adults and how many children attended? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #137031 by </B><A HREF=/tutors/aboutme.mpl?userid=eperette><B>eperette(173)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=eperette><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=137031\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let<BR>\n" );
document.write( "a = number of adults<BR>\n" );
document.write( "c = number of children\r<BR>\n" );
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document.write( "Then <BR>\n" );
document.write( "a + c = 640<BR>\n" );
document.write( "3a + 1c = 1220\r<BR>\n" );
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document.write( "We will solve using elimination (subtraction method)<BR>\n" );
document.write( "-1(a + c = 640)<BR>\n" );
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document.write( "-a - c = -640<BR>\n" );
document.write( "3a + c = 1220<BR>\n" );
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document.write( "2a + 0 = 580<BR>\n" );
document.write( "2a/2 = 580/2<BR>\n" );
document.write( "a = 290\r<BR>\n" );
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document.write( "Now lets go back and substitute a to find c<BR>\n" );
document.write( "a + c =640<BR>\n" );
document.write( "290+c =640<BR>\n" );
document.write( "290-290+c=640-290<BR>\n" );
document.write( "0 + c = 350<BR>\n" );
document.write( "c = 350<BR>\n" );
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document.write( "There were 290 adults and 350 children\r<BR>\n" );
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document.write( "CHECK<BR>\n" );
document.write( "290+350=640 admissions<BR>\n" );
document.write( "290($3) + 350($1)=$870 + $350 = $1,220<BR>\n" );
document.write( "answer is right </SPAN>\n" );
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