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Mathematics, 11.12.2020 01:10 iancuteodora30

A little worker has a metal alloy that is 20% copper in another hour we got a 60% copper. How many kilograms of each alloy sugar metal worker come by to create 90 kg of a 52% copper alloy?

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A little worker has a metal alloy that is 20% copper in another hour we got a 60% copper. How many k...

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