document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=148181>Question 148181</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 7) Tickets for a play at the community theater cost $20 for an adult and $8 for a child.  If 220 tickets were sold and the total receipts were $3200, how many of each type of ticket were sold?\r<BR>\n" );
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document.write( "Can someone please help?\r<BR>\n" );
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document.write( "v/r<BR>\n" );
document.write( "Jess </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #108579 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=108579\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Tickets for a play at the community theater cost $20 for an adult and $8 for a child. If 220 tickets were sold and the total receipts were $3200, how many of each type of ticket were sold? <BR>\n" );
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document.write( "Using two variables<BR>\n" );
document.write( "Quantity Equation: a + c = 220<BR>\n" );
document.write( "Value EQUATION: 20a + 8c = 3200<BR>\n" );
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document.write( "Modify to use elimination:<BR>\n" );
document.write( "20a + 20c = 4400<BR>\n" );
document.write( "20a + 8c = 3200<BR>\n" );
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document.write( "Subtract to solve for \"c\"<BR>\n" );
document.write( "12c = 1200<BR>\n" );
document.write( "c = 100 (# of child tickets)<BR>\n" );
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document.write( "Substitute to solve for \"a\":<BR>\n" );
document.write( "a+c = a+100 = 220<BR>\n" );
document.write( "a = 120 (# of adult tickets)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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