Mathematics, 02.10.2020 20:01 escojo2508

You need 40% alcohol solutions. On hand, you have a 80 mL of a 20% alcohol mixture. You also have 50% alcohol mixture. How much of the 50% mixture will you need to add to obtain the desired solution?

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You need 40% alcohol solutions. On hand, you have a 80 mL of a 20% alcohol mixture. You also have 50...