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Mathematics 67 Online
OpenStudy (anonymous):

A jeweler wants to combine a 60% gold alloy with a 20% gold alloy to make 1000 grams of 50% gold alloy. How many grams of 60% alloy should be used?

OpenStudy (mertsj):

Let x = amount of 60% alloy Then 1000-x = amount of 20% alloy Now base the equation on the amount of gold in each quantity: .60x+.20(1000-x)=.50(1000)

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