jery sells children's tickets for half the adult ticket price. if 5 adult tickets and 8 childrens tickets cost a total of $27, what is the cost of an adult ticket?
we can calculate it by listing 2 equations let x be children ticket price and y be adults x = y/2. (1) 8x + 5y = 27 (2) from (1), sub 1 into 2 8 (y/2) + 5y =27 4y + 5y = 27 9y = 27 y = 3 using y = 3 we can go back to (1) and calculate x, but since y is already adult ticket, so we don't necessarily have to. therefore adult ticket cost $3 each
