creating linear inequalities

Question

Travis practices his guitar for at least 10 hours per week. He practices for half an hour each session. If Travis has already practiced for 4 hours this week, how many more sessions remain for him to meet the weekly hours?

Answer 1

Are given total time weekly= 10 hours, and each session duration is 1.5 hours.

Since Travis spent 4 hours, the remaining hours will be (10 hours)- (4 hours)n= (n*1.5 hours), where n is number of sessions. Then 6 hours=mail pouch

Thus, n=4.

Answer 2

Travis has at least 10-4 = 6 hours of practicing left. Each session is half an hour. So he has at least 6/0.5 = 12 more sessions to go.