a cashier collected $312 from the sale of 50 tickets. An adult ticket costs $8, a child ticket costs $4. How many tickets of each type did the cashier sell?

Answer 1

8 a + 4 c = 312
1 a + 1 c = 50
==================
2 a + 1 c = 78
1 a + 1 c = 50
--------------------- subtract
a + 0 = 28
etc

Answer 2

wait, it doesn't make sense, can you explain?

Answer 3

actually, solved it

Answer 4

whew :)
I never claimed to make sense, but can do arithmetic.

Answer 5

I dont understand