SOLUTION: Pure silver is added to an 18% silver alloy to produce 20 ounces of an alloy that is 20% silver. Find how much pure silver was used.

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Question 1006756: Pure silver is added to an 18% silver alloy to produce 20 ounces of an alloy that is 20% silver. Find how much pure silver was used.
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
using one variable for a two-part mix problem
Your exercise question works the same way. SAME method, different example.