Jason has 4 gallons of hand sanitizer that contains 25% alcohol. He wants to make a hand sanitizer that contains 50% alcohol. How many gallo

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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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Diễm Thu 5 years 2021-08-17T13:10:47+00:00 1 Answers 107 views 0

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  1. Tryphena
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    2021-08-17T13:12:04+00:00
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    Answer:

    2 gallons of pure alcohol

    Step-by-step explanation:

    Let x represent the number of gallons of pure alcohol needed, and create an equation:

    4(0.25) + x(1) = (x + 4)0.5

    1 + x = 0.5x + 2

    x = 0.5x + 1

    0.5x = 1

    x = 2

    So, 2 gallons of pure alcohol should be added.

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