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May 22, 2015

Homework Help: algebra

Posted by aaaa on Wednesday, January 26, 2011 at 2:59pm.

British sterling silver is a copper-silver alloy that is 7.5% copper by weight. How many grams of pure copper and how many grams of British sterling silver should be used to prepare 170 grams of a copper-silver alloy that is 16% copper by weight?

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