Physics, 08.10.2019 22:00 xcoder3957

On monday joe bought 10 cups of coffee and 5 doughnuts for his office at the cost of $16.50. it turns out that the doughnuts were more popular than the coffee. on tuesday he bought 5 cups of coffee and 10 doughnuts for a total of $14.25. how much was each cup of coffee?

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On monday joe bought 10 cups of coffee and 5 doughnuts for his office at the cost of $16.50. it turn...

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