document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=812652>Question 812652</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A group of people bought movie tickets at the AMC Century City. They bought a total of 7 tickets, some adult and some kid tickets. They spent a total of $72. If adult tickets cost $12 and kid tickets cost $9, how much of each were purchased?<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #489317 by </B><A HREF=/tutors/aboutme.mpl?userid=TimothyLamb><B>TimothyLamb(4379)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=TimothyLamb><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=TimothyLamb><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=489317\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a + k = 7<BR>\n" );
document.write( "a = 7 - k<BR>\n" );
document.write( "12a + 9k = 72<BR>\n" );
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document.write( "12a + 9k = 72<BR>\n" );
document.write( "12(7 - k) + 9k = 72<BR>\n" );
document.write( "84 - 3k = 72<BR>\n" );
document.write( "84 - 3k = 72<BR>\n" );
document.write( "3k = 12<BR>\n" );
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document.write( "k = 4<BR>\n" );
document.write( "a = 3<BR>\n" );
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document.write( "Solve and graph linear equations:<BR>\n" );
document.write( "https://sooeet.com/math/linear-equation-solver.php<BR>\n" );
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document.write( "Solve quadratic equations, quadratic formula:<BR>\n" );
document.write( "https://sooeet.com/math/quadratic-formula-solver.php<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Convert fractions, decimals, and percents:<BR>\n" );
document.write( "https://sooeet.com/math/fraction-decimal-percent.php<BR>\n" );
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document.write( "Calculate and graph the linear regression of any data set:<BR>\n" );
document.write( "https://sooeet.com/math/linear-regression.php </SPAN>\n" );
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