SOLUTION: on the grand opening of the movie theater 172 tickets were sold adult tickets is $16 and a child ticket is $8 . "how do you put this in a problem"?

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Question 748686: on the grand opening of the movie theater 172 tickets were sold adult tickets is $16 and a child ticket is $8 . "how do you put this in a problem"?
Answer by Cromlix(4381) About Me  (Show Source):
You can put this solution on YOUR website!
In this problem you also require
a sum of money which equals the
cost of all the tickets sold.
First line would be:
x + y = 172
x representing an adult's ticket
y representing a child's ticket
Then:
16x + 8y = cost of all tickets sold
x + y = 172
16x + 8y = cost of all tickets sold
Solve this by substitution