Mathematics
Mathematics, 22.08.2019 03:50, alex5560

Cupro-nickel coins are minted by mixing copper and nichel in the ratio 4: 1
a) how much copper is needed to mix with 20kg of nickel?
b) how much nickel is needed to mix with 20kg of copper?

answer
Answers: 1

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Cupro-nickel coins are minted by mixing copper and nichel in the ratio 4: 1
a) how much copper...

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