SOLUTION: A jeweler has 6 rings, each weighing 18 g, made of an alloy of 7% silver and 93% gold. She decides to melt down the rings and add enough silver to reduce the gold content to 81%. H
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Question 803293: A jeweler has 6 rings, each weighing 18 g, made of an alloy of 7% silver and 93% gold. She decides to melt down the rings and add enough silver to reduce the gold content to 81%. How much silver should she add?
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
Let w = grams of Silver to add, to dilute the gold.
{Amount of gold}/{Amount of alloy} = {81% or 0.81}
to use decimal fractions instead of "percents".
grams of Silver
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