Question 263434
A silversmith mixed 30 g of a 70% silver alloy with 50 g of a 15% silver alloy. What is the percent concentration of the resulting alloy? (Round your answer to the nearest tenth of a percent.)
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30*0.7 + 50*0.15 = 80x
80x = 21 + 7.5 = 28.5
x = 0.35625
x = 35.6% Ag