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Andreas93 [3]
3 years ago
5

Write equation about total terms

Mathematics
1 answer:
andriy [413]3 years ago
7 0
Define on variables:
x = # of student tickets sold
y = # of adult tickets sold

Equation about total items:
x+y=22

Equation about total price:
4x+6y = 108

Solve the system:
x = 22-y
4(22-y)+6y=108
88-4y+6y=108
88+2y=108
2y=20
y = 10

Plug that into the first equation to get:
x+10=22
x = 12

So, your answer is: 12 student tickets were sold, and 10 adult tickets were sold.
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