February 20, 2017

Homework Help: Algebra/Math

Posted by Anon on Wednesday, February 27, 2013 at 8:48pm.

Can you show work por favor? :)
A metalworker has a metal alloy that is 20% copper and another alloy that is 60% copper. How many kilograms of each alloy should be combined to create 80 kg of a 53% copper alloy?

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