SOLUTION: the amount of gold is measured in karats(K), where 24K represents pure gold. the mark 14K on a chain indicates that the ratio between the mass of the gold in the chain and the mass

Algebra ->  Proportions -> SOLUTION: the amount of gold is measured in karats(K), where 24K represents pure gold. the mark 14K on a chain indicates that the ratio between the mass of the gold in the chain and the mass      Log On


   



Question 237859: the amount of gold is measured in karats(K), where 24K represents pure gold. the mark 14K on a chain indicates that the ratio between the mass of the gold in the chain and the mass of the chain is 14:24. If a gold ring is marked 18K and it weighs 0.04 oz, what is the value of the gold in the ring if pure gold is valued at $300 per oz?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
18:24 is the same as 0.75 or 3/4
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the ring is 3/4 * 0.04 = 0.03 oz. of gold.
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value of the ring is 0.03*300 = $9
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Cheers,
Stan H.