SOLUTION: Forty ounces of a 35% gold alloy are mixed with 70 oz of a 22% alloy

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Question 1164013: Forty ounces of a 35% gold alloy are mixed with 70 oz of a 22% alloy
Answer by josgarithmetic(39614) About Me  (Show Source):
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Concentration of the gold in the new mixture alloy:

%28%2835%29%2840%29%2B%2822%29%2870%29%29%2F%2840%2B70%29percent