Please I need help!!
Jason has 4 gallons of hand sanitizer that contains 25% alcohol. He wants to make a hand sanitizer that contains 50% alcohol. How many gallons of pure alcohol should he add?

25% of 4 gallons is 1 gallons, which means that 75% of the hand sanitizer is not alcohol, and is 3 gallons. since that is the amount of not alcohol, and we want it to be 50% solution, it has to be 3 gallons of alcohol in total, and 3-1=2.

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ibiscollingwood ibiscollingwood · Answer 2 · 2022-02-15T12:04:32+01:00

Two gallons of pure alcohol should he add to make hand sanitizer that contains 50% alcohol.

Percentage:

Given that, 4 gallons of hand sanitizer that contains 25% alcohol.

25% of 4 gallons is 1 gallons. It means that out of 4 gallons, 1 gallon are pure alcohol and 3 gallons are non- alcohol.

We have to make a hand sanitizer that contains 50% alcohol.

So that, when we add 2 gallons of alcohol in the 4 gallons of hand sanitizer.

Then, that hand sanitizer that contains 50% alcohol.

Learn more about the percentage here:

https://brainly.com/question/19247356

Please I need help!! Jason has 4 gallons of hand sanitizer that contains 25% alcohol. He wants to make a hand sanitizer that contains 50% alcohol. How many gallons of pure alcohol should he add?

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Please I need help!!
Jason has 4 gallons of hand sanitizer that contains 25% alcohol. He wants to make a hand sanitizer that contains 50% alcohol. How many gallons of pure alcohol should he add?