a coin contains 9 grams of nickel and 16 grand of copper for a total weight of 25 grams what if the percentages the metal in coi
ns is copper
2 answers:
64% of the coin is copper metal.
Answer: 64%
Step-by-step explanation:
Given : A coin contains 9 grams of nickel and 16 grams of copper for a total weight of 25 grams .
i.e. Total weight of coin = 25 grams
weight of copper in a coin = 16 grams
Then , the percentages the metal in coins is copper is given by :-
Hence, the percentages the metal in coins is copper = 64%
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