SOLUTION: How much salt must be added to 67 gallons of fresh water to achieve a 5% solution?

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Question 269044: How much salt must be added to 67 gallons of fresh water to achieve a 5% solution?
Answer by Alan3354(69443) About Me  (Show Source):
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How much salt must be added to 67 gallons of fresh water to achieve a 5% solution?
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By volume, the 67 gal of water will by 95% of the solution.
The total will be 67/0.95 =~ 70.526 gallons
The salt is that -67, =~ 3.526 gal of salt.