M Mystery Guest Feb 8, 2009 #1 1. How much of an alloy that is 20% copper should be mixed with 200 ounces of an alloy that is 50% copper in order to get 30% copper Please show step by step!
1. How much of an alloy that is 20% copper should be mixed with 200 ounces of an alloy that is 50% copper in order to get 30% copper Please show step by step!