Problema Solution
A goldsmith mixed 10 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 provided by our tutors
Let 'p' represent the percent of the resulting alloy as a decimal.
0.40*10 + 0.25*60 = x*(10 + 60)
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........
x = 0.2714 or 27.14%
The percent concentration of gold in the resulting alloy is 27.14%.