<h3>
Answer with Step-by-step explanation:</h3>
Let student tickets sold be=x
and adult tickets sold=y
They sold 5 times as many student tickets as adult tickets.
i.e. x=5y
The student tickets cost $2.00 each and
the adult tickets cost $4 each.
They made $140.
i.e. 2x + 4y = 140
Dividing both sides by 6, we get
x + 2y = 70
or 5y + 2y= 70
i.e. 7y=70
i.e. y=10
x= 5y
⇒ x = 50
Hence, Student tickets sold= 50
and Adult tickets sold= 10