SOLUTION: Forty ounces of a 25% gold alloy are mixed with 66 oz of a 28% alloy. Find the concentration of the resulting gold alloy.

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Question 848749: Forty ounces of a 25% gold alloy are mixed with 66 oz of a 28% alloy. Find the concentration of the resulting gold alloy.
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
.25*40+.28*66= 28.48
28.48=x*106
x=0.268679
26.8679%