document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=328869>Question 328869</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Use a system of equations in two variables to solve this problem:\r<BR>\n" );
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document.write( "A father paid $119 for his family of 7 to spend the day at Magic Waters waterpark.  How many tickets did he buy?\r<BR>\n" );
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document.write( "Admission<BR>\n" );
document.write( "_________\r<BR>\n" );
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document.write( "Adult ticket - $21<BR>\n" );
document.write( "Child ticket - $14 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #235643 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=235643\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A+C=7 OR A=7-C<BR>\n" );
document.write( "21A+14C=119<BR>\n" );
document.write( "REPLACE A WITH (7-C) IN THE SECOND EQUATION & SOLVE FOR C.<BR>\n" );
document.write( "21(7-C)+14C=119<BR>\n" );
document.write( "147-21C+14C=119<BR>\n" );
document.write( "-7C=119-147<BR>\n" );
document.write( "-7C=-28<BR>\n" );
document.write( "C=-28/-4<BR>\n" );
document.write( "C=4 CHILDREN.<BR>\n" );
document.write( "A=7-4=3 ADULTS.<BR>\n" );
document.write( "PROOF:<BR>\n" );
document.write( "21*3+14*4=119<BR>\n" );
document.write( "63+56=119<BR>\n" );
document.write( "119=119 </SPAN>\n" );
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