Mathematics
Mathematics, 20.11.2019 11:31, carriboneman

Ajeweler has five rings, each weighing 18g, made of 20% silver and 80% gold. he decides to melt down the rings and add enough silver to reduce the gold content to 60%. how much silver should he add?

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Ajeweler has five rings, each weighing 18g, made of 20% silver and 80% gold. he decides to melt down...

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