Question 344661: If you have one gallon of pure antifreeze, how much water would you add to make a mixture of 70 percent water and 30 percent antifreeze? Answer by Jk22(389) (Show Source):
You can put this solution on YOUR website! 1 gallon (antifreeze) -> 30
then 70 (water) -> x gallon water ?, x=70/30*1 gallon=7/3 gallon water which is approx : 2,33 gallon water.