Problema Solution
A silversmith combined pure silver that costs $3.70 an ounce with 120 oz of a silver alloy that costs $2.60 an ounce. How many ounces of the pure silver were used to make an alloy of silver that costs $3.10 an ounce?
Answer provided by our tutors
Let 'x' represent the ounces of pure silver used
3.70x + 2.60*120 = 3.10(x + 120)
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click here to see the equation solved for x
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x = 100 oz
100 ounces of pure silver were used to make an alloy of silver that costs $3.10 an ounce.