The elementary school students are putting on a play as a fundraiser. the student tickets cost $2.00 each and
the adult tickets cost $4 each. they sold 5 times as many student tickets as adult tickets. they made $140. how
many student and adult tickets were sold?

850 for student and 850 for students

Step-by-step explanation:

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

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answer: d.) the total number of protons and neutrons is 15

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