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Mathematics, 18.02.2021 23:50 katefuly
A chemist needs 40 liters of a solution that is 20% acid for a certain experiment but she has only a solution that is 15% acid and a solution that is 40% acid how many liters of the 15% and th 40% solutions should she mix together
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A chemist needs 40 liters of a solution that is 20% acid for a certain experiment but she has only a...
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