document.write( "Question 994099: A theater has tickets at $6 for adults, $3.50 for students, and $2.50 for children under 12 years old. A total of 278 tickets were sold for one showing with a total revenue of $1300. If the number of adult tickets sold was 10 less than twice the number of students tickets, how many of each type of tickets were sold for the showing? \n" ); document.write( "
Algebra.Com's Answer #613304 by josgarithmetic(39620)\"\" \"About 
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a adults
\n" ); document.write( "s students
\n" ); document.write( "c children
\n" ); document.write( "\"a=-10%2B2s\"
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\n" ); document.write( "\"system%28a%2Bs%2Bc=278%2C6a%2B3.5s%2B2.5c=1300%2Ca=2s-10%29\"\r
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\n" ); document.write( "\n" ); document.write( "Multiply the members of the revenue equation by 2:
\n" ); document.write( "\"system%28a%2Bs%2Bc=278%2C12a%2B7s%2B5c=2600%2Ca=2s-10%29\"
\n" ); document.write( "Three linear equations in three unknowns. Solve.
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