Mathematics, 31.08.2020 22:01 samarkanduzbek
A chemistry teacher needs to mix a 40% salt solution with a 90% salt solution to make 25 qt of a 60% salt solution. How many quarts of each solution should the teacher mix to get the desired result?
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A chemistry teacher needs to mix a 40% salt solution with a 90% salt solution to make 25 qt of a 60%...
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