saucyjojo8081 saucyjojo8081

10-04-2024
Mathematics

contestada

In a 2 kg mixture of copper and aluminum, 30% is copper. How much aluminum powder should be added to the mixture so that the quantity of copper becomes 20%?
A. 900 grams
B. 800 grams
C. 1000 grams
D. 1200 grams

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