Answer:the number of children tickets that were sold is 24
Explanation:
Let x represent the number of child tickets sold at the movie theatre on Wednesday
Let y represent the number of adult tickets sold at the movie theatre on Wednesday.
At the movie theatre, child admission is $5.40 and adult admission is $9.80.
On Wednesday, a total sales of $1070.40 was made. It means that
5.4x + 9.8y = 1070.40 - - - - - - -- 1
On Wednesday, four times as many adult tickets as child tickets were sold. This means that
y = 4x
Substituting x = 4y into equation 1, it becomes
5.4x + 9.8 × 4x = 1070.4
5.4x + 39.2x = 1070.4
44.6x = 1070.4
x = 1070.4/44.6 = 24
y = 24×4 = 96