Question

At Joe's Café 1 cup of coffee and 3 doughnuts cost $7.54, and 2 cups of coffee and 2 doughnuts cost $8.32. What is thecost of 1 cup of coffee?

Answer 1

To answer this question, we can proceed as follows:

1. Let x be the cost of a cup of coffee.

2. Let y be the cost of a doughnut.

Then, we can express the question, algebraically, as follows:

`\begin{cases}x+3y=7.54 \\ 2x+2y=8.32\end{cases}`

Now, we can solve this linear equation system by