Respuesta :
Answer:
40 single tickets were sold.
Step-by-step explanation:
12x+8y=1580
2x+y=250
------------------
y=250-2x
12x+8(250-2x)=1580
12x+2000-16x=1580
-4x+2000=1580
-4x=1580-2000
-4x=-420
4x=420
x=420/4=105
y=250-2(105)=250-210=40
Answer:
40 single tickets were sold.
Step-by-step explanation:
12x+8y=1580
2x+y=250
------------------
y=250-2x
12x+8(250-2x)=1580
12x+2000-16x=1580
-4x+2000=1580
-4x=1580-2000
-4x=-420
4x=420
x=420/4=105
y=250-2(105)=250-210=40