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OldSpice OldSpice
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9 years ago
Sterling silver contains 925 parts silver and 75 parts copper by mass. What is the percent copper in sterling silver in the sample?
A) 7.5%
B) 8.1%
C) 12%
D) 93%
E) 100%
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ElectricElectric
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#1
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9 years ago Edited: 2 years ago, bio_man
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OldSpice Author
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#2
9 years ago
Perfect!

..Thank you so much for your support
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#3
9 years ago
My pleasure
.silent.boss
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#4
3 years ago
Why thank you
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#5
3 years ago
Yes
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#6
3 years ago
Thanks
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#7
3 years ago
Thank you
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