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Gwar [14]
3 years ago
5

The admission fee for a charity event is $7 for children and $10 for adults. The event was attended by 700 people and the total

collected in admissions was$6400. There were how many children and how many adults.
Mathematics
1 answer:
Hitman42 [59]3 years ago
3 0
X = 7
y = 10
x + y = 700
7x + 10y = 6400

10x + 10y = 7000
(-) 7x + 10y = 6400
______________
3x = 600
x = 200

200 + y = 700
y = 500
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We need to use the Law of Sines, which states that for a triangle with legnths a, b, and c and angles A, B, and C:

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