Respuesta :
Answer:
Child $13 and Adult $14
Step-by-Step
x=cost of child tix
y=cost of adult tix
first day: 5y+6x=148
2nd day: 7y+7x=189
series of equations so solve for one variable
7y=189-7x
y=27-x
then plug into other equation
5(27-x)+6x=148
135-5x+6x=148
x=148-135
x=13
then plug into y equation
y=27-13
y=14