Question

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Answer 1

Answer:

Step-by-step explanation:

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Ratio = 9:7

Weight of zinc = 9.8 kg

So, 9/7 = x/9.8

» 9*9.8= 7x

» 88.2 = 7x

» 88.2/7 = x

» x = 12.6

So, weight of copper is 12.6 kg.

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Answer 2

Answer:

ratio=9:5

weight of zinc=9.5 g

Step-by-step explanation:

Let the weight of copper = x

x/9.5=9/5

5x=85.5

x=17.1

Therefore weight of zinc is 17.5

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