Mathematics, 18.10.2019 22:00 SiegeHatake4534

Apharmacist needs 20 liters of a 2% saline solution. she has a 1% solution and a 5% solution available. how many liters of the 1% solution and how many liters of the 5% solution should she mix to make the 2% solution?

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Apharmacist needs 20 liters of a 2% saline solution. she has a 1% solution and a 5% solution availab...