SOLUTION: A goldsmith mixed 30 g of a 40% gold alloy with 60 g of a 25% gold alloy. What is the percent concentration of the resulting alloy? (Round your answer to the nearest percent.)
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Question 781168: A goldsmith mixed 30 g of a 40% gold alloy with 60 g of a 25% gold alloy. What is the percent concentration of the resulting alloy? (Round your answer to the nearest percent.)
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
Percent of alloy is (Component of interest)/(Total mixture), and then multiplied by 100.
Amount of gold = which already represents that factor of 100.
Amount of mixture, alloy =
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