Mathematics, 23.02.2021 08:20, granniejo

6. A metallurgist needs to make 10 oz. of an alloy containing 35% copper. She is going to melt and combine one metal that is 20% copper with another metal that is 70% copper. How much of each should she use?

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6. A metallurgist needs to make 10 oz. of an alloy containing 35% copper. She is going to melt and c...