Question

Deriyan makes $75 for 4 hours of work while Gianna makes $90 for 5 hours of workIf Deriyan works 18.5 hours and Gianna works 19 hours, who makes more money?

Answer 1

We have the following:

What we must do is calculate the hourly earnings of each, like this

Deriyan

`(75)/(4)=18.75`

Gianna

`(90)/(5)=18`

now we multiply by the number of hours they worked

Deriyan (18.5 hours)

`18.75\cdot18.5=346.875`

Gianna (19 hours)

`18\cdot19=342`

Therefore Deriyan made more money in that period of time.