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A metallurgist wishes to form 2,000 kilograms of an alloy that is 80% copper. He is to obtain this alloy by fusing together
some alloy that is 60% copper with some alloy that is 85% copper. How many kilograms of each alloy must be used?
Let x= number of kilograms of 60% copper and y= number of kilograms of 85% copper.


Sagot :

Answer:

84÷5=16.8

Step-by-step explanation:

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