Mathematics, 23.10.2020 22:50, electrofy456
A scientist needs 75ml of 30% concentrate solution for a certain experiment, but he only has 25% solution and 45% solution. How many milliliters of 25% and 45% solutions should he mix to get what he needs?
Answers: 2
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A scientist needs 75ml of 30% concentrate solution for a certain experiment, but he only has 25% sol...
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