SOLUTION: How many ounces of pure gold must be added to five ounces of something that is 1 percent gold in order that the mixture is 6 percent gold?

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What's the situation before any extra gold is added?
1% of 5 ounces of "stuff" is gold. The equation is:

The numerator is how much gold is in it. The denominator is
total "stuff" including gold, so when I add x amount of new gold
I add it to top and bottom and make it = .06.



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