Mathematics, 23.06.2019 18:30 Star6147
The purity of gold is measured in? karats, with pure gold being 24 karats. other purities of gold are expressed as proportional parts of pure gold. thus? 18-karat gold is 18/24? , or? 75% pure? gold; 12-karat gold is 12/24? , or? 50% pure? gold; and so on. how much 16? -karat gold should be mixed with pure gold to obtain 80 grams of 20? -karat ? gold?
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The purity of gold is measured in? karats, with pure gold being 24 karats. other purities of gold a...
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