document.write( "Question 990262: A goldsmith mixed 10 g of a 60% gold alloy with 40 g of a 15% gold alloy. What is the percent concentration of the resulting alloy? (Round your answer to the nearest percent.)
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Algebra.Com's Answer #610297 by josgarithmetic(39618)\"\" \"About 
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\"%28howMuchGold%29%2F%28howMuchAlloy%29=fractionAsGold\"\r
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