Question 899568
x+y=80,
33*x+25*y=2400
x=80-y
33*(80-y)+25*y=2400
2640-33y+25*y=2400
-8*y=-240
y=30
x=80-y
x=50 y=30
check
50+30=80
33*x+25*y=2400
33*50+25*30=2400
1650+750=2400
2400=2400
ok