Data:
t: number of hours
y: earnings
earn more than $44
He charges $6 per hour (6t) and pays $4 (-4) in equipment fees:
Then, you get the next inequality:
To find the number of hours Trey could trim trees solve the inequality for t:
- Add 4 in both sides of the inequality:
- Divide both sides of the inequality into 6:
Then, Trey needs to trim tress for more than 8 hours to earn more than $44