At the movie theatre, child admission is $5.40 and adult admission is $9.20 . on thursday, twice as many adult tickets as child tickets were sold, for a total sales of $785.40 . how many child tickets were sold that day
Substitute a into the first equation 9.2(2c) + 5.4c = 785.4 Simplify 18.4c + 5.4c = 785.4 Combine like terms by adding 23.8c = 785.4 Divide both sides by 23.8 to isolate the variable c c = 33
