Question 344830: How many gallons of water is needed to add to a 1 gallon 100% concentration of anti freeze to form a mixture of 30%? Answer by ewatrrr(24785) (Show Source):
You can put this solution on YOUR website! Hi,
30% states how much of the TOTAL mixture will be anti freeze!
30% = (30/100) = .30
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Let T be the amount of the TOTAL mixture: Problem States there will be 1 gallon of antifreeze in the mixture
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.30*T = 1gallon
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T = 3 1/3 Gallons ( 1 Gallon of which is antifreeze)
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Need to add 2 1/3 gallons of water to make the proper mixture
