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Vera_Pavlovna [14]
3 years ago
12

How much water should be added to 3 gallons of pure alcohol in order to obtain a solution that is 50% alcohol?

Mathematics
2 answers:
AlexFokin [52]3 years ago
5 0
Let x=amount of water added.

let 3+x=amount of alcohol and water in 15% solution.

Let 3 gallons of alcohol=percentage of alcohol*volume of solution

3=0.15*(3 + x)

3=0.45 + 0.15x

2.55=0.15x

2.55/0.15=x or 17 gallons of water added=x
mash [69]3 years ago
3 0

Answer: 3 gallons of water

Step-by-step explanation:

3 gallons of alcohol +3 gallons of water = 6 gallons total

alcohol = 3/6 = 50%

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