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Mathematics, 21.08.2019 21:00 hamadehassan
Avat contains 60 gallons of a 15% saline solution. how many gallons of water must be evaporated so that the resulting solution will be 20% saline?
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Mathematics, 22.06.2019 06:00
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Avat contains 60 gallons of a 15% saline solution. how many gallons of water must be evaporated so t...
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