Question 594573: How many gallons of a 3% acid solution must be mixed with 60 gallons of 10% acid solution to make an acid solution that is 8%? Answer by mananth(16946) (Show Source):
You can put this solution on YOUR website! -------------- percent ---------------- Amount
Acid solution 60 ---------------- 10 gallons
Acid solution type II 3 ---------------- x gallons
Mixture 8 ---------------- 10 + x gallons
60*10+3x=8(10+x)
600+3x =80+8x
3x-8x=-600+80
-5x=-520
/ -5
x=104 gallons Acid solution type II
