Question

A waitress 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?

Answer 1

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

We know for our problem that she works
`5 (1)/(8)` in the afternoon and that she works 1.75 hours less in the afternoon than in the evening, so:

`x=5 (1)/(8) -1.75`
Since
`(1)/(8) =0.125`, we can rewrite our expression:

`x=5.125-1.75`

`x=3.375`

We can conclude that she works 3.375 hours in the evening, or expressed as a mixed fraction:
`3 (3)/(8)` hours.