document.write( "Question 124704: Adult tickets for a play cost $10 and child tickets cost $4. If there were 30 people at a performance and the theater collected $234 from ticket sales, how many adults and how many children attended the play? \n" ); document.write( "
Algebra.Com's Answer #91421 by josmiceli(19441)\"\" \"About 
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a = number of adult tickets
\n" ); document.write( "c = number of child tickets
\n" ); document.write( "\"10a+%2B+4c+=+234\"
\n" ); document.write( "\"a+%2B+c+=+30\"
\n" ); document.write( "\"a+=+30+-+c\"
\n" ); document.write( "\"10%2830+-+c%29+%2B+4c+=+234\"
\n" ); document.write( "\"300+-+10c+%2B+4c+=+234\"
\n" ); document.write( "\"-6c+=+-66\"
\n" ); document.write( "\"c+=+11\"
\n" ); document.write( "Ther were 11 children at the play
\n" ); document.write( "
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