document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=218143>Question 218143</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Tickets to a show cost $2 for kids, $3 for seniors, and $5 for adults. If there were twice as many kids as seniors, and if 91 tickets were sold and $311 was collected, how many of each te of ticket was sold?\r<BR>\n" );
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document.write( "My class just started these kind of problems at school, and this is one of the example we have to do, and I don't understand it but I did similar problems as this. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #164373 by </B><A HREF=/tutors/aboutme.mpl?userid=RAY100><B>RAY100(1637)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=RAY100><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=164373\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let  k=# kids  tickets, s=#senior  tickets,,,and  a=# adult  tickets<BR>\n" );
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document.write( "k+s+a=91,,,,but  k=2s<BR>\n" );
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document.write( "2s +s +a =91<BR>\n" );
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document.write( "3s +a =91,,,,,or  a = (91-3s)<BR>\n" );
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document.write( "$2*k + $3*s +$5*a =311<BR>\n" );
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document.write( "2*(2s) + 3*s +$5*(91-3s) =311,,,,,lots  of  substitutions<BR>\n" );
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document.write( "4s +3s -15s +455 =311<BR>\n" );
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document.write( "-8s = -144<BR>\n" );
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document.write( "s=18<BR>\n" );
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document.write( "subst  back  in,,,k=2s = 2*18 =36,,,,a= 91-3s=91-3*18= 37<BR>\n" );
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document.write( "Total  #  tickets  = k+s+a=36+18+37=91,,,,,ok<BR>\n" );
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document.write( "checking $,,,2*36 +3*18 +5*37 = 72+54+185 = 311,,,,ok </SPAN>\n" );
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