Mathematics
Mathematics, 03.07.2019 08:00, iicekingmann

Adruggist wants to reduce a 20-ounce quantity of a 7% solution of iodine to a 4% solution by adding pure alcohol. how much alcohol must he add to accomplish this?

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Adruggist wants to reduce a 20-ounce quantity of a 7% solution of iodine to a 4% solution by adding...

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