document.write( "Question 258680: Adult movie tickets cost 6 dollars. Child tickets cost 3 dollars. If 700 people go to a movie and the total ticket sales are 3300 dollars how many children and how many adults were there? \n" ); document.write( "
Algebra.Com's Answer #190476 by Fombitz(32388)\"\" \"About 
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Let A be the adult tickets, C the children tickets.
\n" ); document.write( "1.\"A%2BC=700\"
\n" ); document.write( "2.\"6A%2B3C=3300\"
\n" ); document.write( "From eq. 1,
\n" ); document.write( "\"A=700-C\"
\n" ); document.write( "Substitute in eq. 2,
\n" ); document.write( "\"6%28700-C%29%2B3C=3300\"
\n" ); document.write( "\"4200-6C%2B3C=3300\"
\n" ); document.write( "\"-3C=-900\"
\n" ); document.write( "\"C=300\"
\n" ); document.write( "Then from eq. 1,
\n" ); document.write( "\"A=700-C\"
\n" ); document.write( "\"A=700-300\"
\n" ); document.write( "\"A=400\"
\n" ); document.write( "400 adult tickets, 300 children tickets.
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