24.0k views
7 votes
Json has 4 gallons of hand sanitizer that contains 25% alcohol. He want sto make a hand santizer that contains 50% alchahol. How many gallons of pure alcohol should he add?

User Hbceylan
by
6.5k points

1 Answer

8 votes

Answer:

2

Explanation:

1+x/4+x = 1/2

4+x = 2 + 2x

x = 2

User SomeHowWhite
by
6.5k points
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