Dancedavis875 Dancedavis875
  • 26-01-2018
  • Mathematics
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A metalworker has a metal alloy that is 20​% copper and another alloy that is 75​% copper. How many kilograms of each alloy should the metalworker combine to create 80 kg of a 53​% copper​ alloy?

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chquay chquay
  • 29-01-2018
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