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Rina8888 [55]
4 years ago
9

Two solutions of different concentrations of acid are mixed creating 40 mL of a solution that is 32% acid. One-quarter of the so

lution is made up of a 20% acid solution. The remaining three-quarters is made up of a solution of unknown concentration, c.
Which equation can be used to determine c, the unknown concentration?

Mathematics
2 answers:
Leya [2.2K]4 years ago
5 0
32.6666

Hope I helped!
Nikitich [7]4 years ago
4 0
The answer is the first one: 30c + 10(0.2) = 40(0.32)
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