Mathematics, 18.10.2019 12:30 ygneely

Acoin contains 1.25 grams of nickel and 3.75 grams of copper, for a total weight of 5 grams what percentage of the metal in coin is copper

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Acoin contains 1.25 grams of nickel and 3.75 grams of copper, for a total weight of 5 grams what per...

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