Question

The treasurer of the student body at a college reported that the receipts from a recent contact totaled $916; Furthermore, he announced that 560 people had attended the concert. Students were charged $1.25 each for admission to the concert, and adults were charged $2.25 each. How many adults attended the concert?

Answer 1

a+c = 560
2.25a + 1.25c = 916

now just solve for a

Answer 2

23