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how much pure gold should be added to a 4-ounce alloy that ispresently 20% gold to make it 55% gold? round your answer to twodecimal
how much pure gold should be added to a 4-ounce alloy that ispresently 20% gold to make it 55% gold? round your answer to twodecimal places. 2 answers
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Advanced Engineering Mathematics
Authors: Erwin Kreyszig
3rd Edition
471507288, 978-0471507284
