Question

Quentin buys 12 tickets for a group of adults and children for a total of $100. Adult tickets are $10 each and child tickets are $5 each. How many of each ticket did Quentin buy?​

Answer 1

8 ADULTS
4 CHILDREN

a + c = 12
y = 100
y=10a + 5c
100=10a+5c
100=10(8)+5(4)
100=80+20