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Mathematics, 13.10.2019 06:30 2021sherodisabella
Apharmacist wants to make 30 ml of a 72% solution. how many ml of a 60% solution must he mix with a 80% solution to make the desired solution?
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Apharmacist wants to make 30 ml of a 72% solution. how many ml of a 60% solution must he mix with a...
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