Ava45018 Ava45018
  • 06-01-2018
  • Mathematics
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Аноним Аноним
  • 06-01-2018
weight of copper = 1/2w and weight of zinc = 1/2 w
So:-

c =  0.5w*6 + 0.5w*3

c =  3w + 1.5w  = 4.5w

this equation is the same as choice A

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