Andy C. answered • 08/08/17

Tutor

4.9
(27)
Math/Physics Tutor

X is price of advance ticket

Y is price of ticket at the door or same day

X+y =50

40X + 20y = 1700

Y= 50-x

40X + 20(50-x)= 1700

40X + 1000 - 20x = 1700

20X=700

X= 35

Y= 15