Mathematics, 12.11.2020 01:00 Blakemiller2020

You need a 55% alcohol solution. On hand, you have a 390 ml of a 20% alcohol mixture. You also have 85% alcohol mixture. How much of the 85% mixture will you need to add to obtain the desired solution

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You need a 55% alcohol solution. On hand, you have a 390 ml of a 20% alcohol mixture. You also have...