Mathematics, 10.07.2019 16:30, freyaocain
Ajeweler has 5 rings, each weighing 12 g, made of an alloy of 20% silver and 80% gold. she decides to melt down the rings and add enough silver to reduce the gold content to 64%. how much silver should she add?
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Ajeweler has 5 rings, each weighing 12 g, made of an alloy of 20% silver and 80% gold. she decides t...
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