The ratio of copper and zinc in an alloy is 7: 8. If the weight of zinc is 12.8 kg, find the weight of copper in the alloy.
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Answer:
ratio of zinc and copper is 7:8
weight of zinc is 13.6kg multiply with 100 = 13600g
8x=13600
x=13600 by 8 =1700g convert to kg = 1.7
7x=7 * 1.7
=11.9kg copper
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Step-by-step explanation:
the copper is 11.9 kg. is the right answer
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