SOLUTION: Forty ounces of a 40% gold alloy are mixed with 60 oz of a 10% gold alloy. Find the percent concentration of the resulting gold alloy.

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Question 1176986: Forty ounces of a 40% gold alloy are mixed with 60 oz of a 10% gold alloy. Find the percent concentration of the resulting gold alloy.
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
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Forty ounces of a 40% gold alloy are mixed with 60 oz of a 10% gold alloy.
Find the percent concentration of the resulting gold alloy.
:
let x = resulting percent in decimal form
mixture total: 40 + 60 = 100 oz
:
100x = .4(40) + .1(60)
100x = 16 + 6
100x = 22
x = 22%2F100
x = .22 which is 22% gold concentration