Problema Solution
Trevor tutors French for $15 and hour and scoops ice cream for $10 an hour. He is going to work 15 hours this week. At least how many hours does he need to tutor to make more than $180? Let x equal the number of hours he tutors and y be the number of hours he scoops ice cream.
At least how many hours does Trevor need to tutor to make more than $180?
Answer provided by our tutors
x + y = 15 => y = 15 - x
Trevor needs to tutor to make more than $180
15x + 10y > 180
plug y = 15 - x into the inequality
15x + 10(15 - x) > 180
by solving we find
x > 6
click here to see the step by step solution of the inequality
Trevor needs to tutor more than 6 hours.