Question 1063341
 An alloy consists of silver and copper. The mass of silver is 14 2/7% of the mass of copper. What is the percentage of copper in the alloy? 
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Let the alloy's weight be "x".
s + c = x
s = 0.1429c
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1.1429c = x
c = 0.8750x
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Ans:: Percent of copper is 87.5%
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Cheers,
Stan H.
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