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Minchanka [31]
3 years ago
10

So far a total of 48 tickets have been sold for the school play for a total revenue of $220. How many student tickets have been

sold? Set up and solve a system of equations to solve the problem.
Adult = $7
Student=$3
Mathematics
1 answer:
Advocard [28]3 years ago
6 0
Let x be the number of adult tickets and y be the number of student tickets.

From the first sentence we can set up both equations:

1) x + y = 48
2) 7x + 3y = 220

Rearrange #1 to isolate x:
x = 48 - y

Sub that into #2 and solve for y to get your answer:
7(48 - y) + 3y = 220
336 - 7y + 3y = 220
-4y = -116
y = 29

29 student tickets were sold.
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