Question 988413
x=20% acid
25-x=35% acid
.20x+(0.35)(25-x)=0.25*26
.20x+8.75-.35x=6.50
-0.15x=-2.25
x=15 liters of 20% acid
25-x=10 liters of 35% acid.
===
Pure acid
15*0.20+10(.35)=3+3.5=6.5
25*.26=6.5 check