Answer:
2 gallons
Step-by-step explanation:
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.
;)
How to show that they are equal.
3/4 times 25 equals 75/100 and then when you turn it into a decimal it is 0.75. That is why they are equal.
ANSWER = 270,000
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