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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.

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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