Question

PLEASE HELP ME I REALLY NEED THE ANSWER

1 tickets
2 tickets
3 tickets
4 tickets

Answer 1

2 adult tickets

Explanation:

we have two relations

`a + c = 5`

`9a + 4c = 30`

first rearrange the top equality for one of the variables

`a = 5 - c`

now substitute into the second equation

`9(5 - c) + 4c = 30`

perform the distribution and combine like terms

`45 - 9c + 4c = 30`

`45 - 5c = 30`

`- 5c = - 15`

`c = 3`

place this 3 into our first equation and solve for a

`a + (3) = 5`

`a = 2`