Mathematics, 28.12.2019 19:31 emma8437

An alloy of tin is 15% tin weigh 20 pounds . a second alloy is 10% tin . how much pounds of the second alloy must be added to the first to get a 12% mixture

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An alloy of tin is 15% tin weigh 20 pounds . a second alloy is 10% tin . how much pounds of the seco...

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