Respuesta :
a = adult tickets
c = child tickets
x number of c
4(9.00)x + (5.1)x = 1397.4
36x + 5.1x = 41.1x
41.1x = 1397.4
x = 34 child tickets sold
c = child tickets
x number of c
4(9.00)x + (5.1)x = 1397.4
36x + 5.1x = 41.1x
41.1x = 1397.4
x = 34 child tickets sold