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Mathematics, 12.08.2020 21:01 wolffee895

A united states presidential coin is made from an alloy of 4 metals-copper, zinc, manganese, and nickel- with weights in the ratio of 177:12:7:4 respectively. The coin weighs a total of 8 grams. What is the weight of the zinc in this coin?

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A united states presidential coin is made from an alloy of 4 metals-copper, zinc, manganese, and nic...
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