Question

On Monday joe bought 10 cups of coffee and 5 doughnuts for his office at the cost of $16.50. It turns out the doughnuts were more popular than the coffee. On tuesday he boguht 5 cups of coffee and 10 doughnuts for total of $14.25. How much was each cup of coffee

Answer 1

this is how I would do this I would take 10 and 5 add them together and I would get 15 the you take 16.50 add that too 14.25 and that is 30.75 and the subtract 15 well you get 15.75