Answer: 6 orchestra tickets were purchased
Step-by-step explanation:
orchestra purchased tickets = x
balcony purchased tickets = y
ou purchase nine tickets
total cost of $720
x + y = 9
90x + 60y = 720
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x + y = 9 (*-60)
-60x - 60y = -540
90x + 60y = 720 (+)
30x = 180
x = 6
Answer:
y = -2x - 1
y + 3 = -2 ( x - 1 )
y + 3 = -2x + 2
Let the number be x.
Therefore, by the problem
x/6-(-3) = 12
or, x/6+3 = 12
or, x/6 = 12-3
or, x/6 = 9
or, x = 9 × 6
or, x = 54
The number is 54.
