Mathematics, 25.01.2020 21:31 camilacarrielh15

German silver is an alloy composed of nickel, zinc, and copper in a ratio of 3: 4: 13.
how many kilograms of each metal are needed to make 4 kg of this alloy?

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German silver is an alloy composed of nickel, zinc, and copper in a ratio of 3: 4: 13.
how man...