document.write( "Question 85724: Adult tickets for a play cost $11 and child tickets cost $10. If there were 23 people at a performance and the theater collected $246 from ticket sales, how many children attended the play? \n" ); document.write( "
Algebra.Com's Answer #61926 by jim_thompson5910(35256)\"\" \"About 
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Let a=adults, c=children
\n" ); document.write( "\"11a%2B10c=246\"money made from adult's and children's tickets
\n" ); document.write( "\"a%2Bc=23\" number of people
\n" ); document.write( "\"a=23-c\" solve for any variable, in this case a
\n" ); document.write( "\"11%2Ahighlight%28%2823-c%29%29%2B10c=246\"plug in value of a in terms of c
\n" ); document.write( "\"253-11c%2B10c=246\"Distribute
\n" ); document.write( "\"253-c=246\"Simplify
\n" ); document.write( "\"-c=-7\"Isolate c
\n" ); document.write( "\"c=7\"Negate to make c a positive number
\n" ); document.write( "So the number of children that attended is 7\r
\n" ); document.write( "\n" ); document.write( "So the answer is C)
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