ObejarlPotter ObejarlPotter

12-03-2018
Mathematics

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Can you explain how you got it as well?

Can you explain how you got it as well class=

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sqdancefan sqdancefan

16-03-2018

Let "a" represent the percentage of acid in the mixture.
.. 15*40% +25*20% = (15+25)*a
.. 6 +5 = 40a
.. a = 11/40 = 27.5% . . . . . . selection C

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