The purity of gold in jewelry is measured in karats, with 24-karat gold the highest purity...

 

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The purity of gold in jewelry is measured in "karats," with 24-karat gold the highest purity (100% pure gold). You have three gold rings labeled 10 karat, 14 karat, and 18 karat, and would like to know if the rings are correctly labeled. The table shows the results of an analysis of the rings. Ring Label 10-karat 14-karat 18-karat Actual Percentage of Gold 40.6% 59.5% 71.2% In the United States, jewelry manufacturers are legally allowed a half karat tolerance. Determine which of the rings, if any, have an actual percentage of gold that falls outside this tolerance. List any additional information you will need and then complete the task. Be sure to write down all your data and assumptions. Then use graphs, numbers, words, or algebra to explain how you reached your conclusion. The purity of gold in jewelry is measured in "karats," with 24-karat gold the highest purity (100% pure gold). You have three gold rings labeled 10 karat, 14 karat, and 18 karat, and would like to know if the rings are correctly labeled. The table shows the results of an analysis of the rings. Ring Label 10-karat 14-karat 18-karat Actual Percentage of Gold 40.6% 59.5% 71.2% In the United States, jewelry manufacturers are legally allowed a half karat tolerance. Determine which of the rings, if any, have an actual percentage of gold that falls outside this tolerance. List any additional information you will need and then complete the task. Be sure to write down all your data and assumptions. Then use graphs, numbers, words, or algebra to explain how you reached your conclusion.