Question
$$\text { How many gallons of pure alcohol should be mixed with } 20 \text { gal of }$$ $$\text { a } 15 \% \text { alcohol solution to obtain a mixture that is } 25 \% \text { alcohol? }$$
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Let x be the number of gallons of pure alcohol to be mixed with the 20-gallon 15% alcohol solution. Show more…
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