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An alloy of tin and copper contains 16% tin. How much tin (to the nearest tenth) must be added to make 820 pounds of alloy that is 18% tin?
asked
Jul 18, 2017
Chemistry
high-school
1
answer
2
votes
102k
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a paragraph is defined as group of sentences that center on a A. Number of supporting details B. Central idea C. Controversial topic D. set up statistics
asked
Mar 13, 2017
English
high-school
1
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3
votes
202k
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