document.write( "Question 1063124: The number of adults tickets sold, a, was eight times the number of child tickets sold, c,. Child tickets cost $2.50 each; adult tickets cost $5.00 each and last night's show brought in $850. \n" ); document.write( "
Algebra.Com's Answer #678138 by josgarithmetic(39618)\"\" \"About 
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\"system%28a=8c%2C2.5c%2B5a=850%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"2.5c%2B5%288c%29=850\"\r
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\n" ); document.write( "\n" ); document.write( "\"42.5c=850\"\r
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\n" ); document.write( "\n" ); document.write( "\"c=850%2F42.5\"\r
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\n" ); document.write( "\n" ); document.write( "\"c=20\"
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