14-02-2017
Mathematics

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One solution contains 40% alcohol and another solution contains 70% alcohol. How many liter of each solution should be mixed to make 10.5 liters of a 60% alcohol solution?

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Cladams1t Cladams1t

14-02-2017

.4(x)+ .7(10.5-x)=(.6)(10.5)
-.3x=-1.05
X=3.5 Liters

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