Question 450192
from the antifreeze angle
.7x=.5*2
x=1.43
so add 2-1.43 = .57 gallons of water.

from the water angle
70% antifreeze is 30% water

.30x+y=.5*2
x+y=2
x=1.42857 gallons antifreeze ,   y=0.571429 gallons water