Question 916867
Twenty ounces of a 50% gold alloy are mixed with 80 oz of a 30% gold alloy. Find the percent concentration of the resulting gold alloy.
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gold + gold = gold
0.50*20 + 0.30*80 = x(20+80)
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50*20 + 30*80 = 10000x
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1000 + 2400 = 10000x
10000x = 3400
x = 0.34 or 34%
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Cheers,
Stan H.
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