Mathematics, 17.03.2022 21:30, willoughbysierra

There are 90 seats in the school auditorium. The school had a sold out show of their play last weekend, and made $315. The cost of a ticket for an adult was $5.00 and the cost of a ticket for a child is $2.50. Which system of equations could be used to determine the number of adults, a, and
the number of children, c, that attended the showing of the movie?

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There are 90 seats in the school auditorium. The school had a sold out show of their play last wee...