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Mathematics, 24.04.2020 08:56, jeancarlo1107
Anna wants to make 30 mL of a 60% salt solution by mixing together a 72% salt solution and a 54% salt solution . How much of each solution must she use?
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Anna wants to make 30 mL of a 60% salt solution by mixing together a 72% salt solution and a 54% sal...
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