Awaitress works 1.75 hours less in the afternoon than in the evening. if she works 5       1/8 hours in the afternoon, how many hours does she work in the evening?

Let  be the number of hours that the waitress works in the evening.

We know for our problem that she works  in the afternoon and that she works 1.75 hours less in the afternoon than in the evening, so:

Since , we can rewrite our expression:



We can conclude that she works 3.375 hours in the evening, or expressed as a mixed fraction:  hours.