For this case we have the following inequality:
c≥120 + 60n
We substitute the value of c = 360 in the inequality:
360≥120 + 60n
We clear the value of n:
360 - 120 ≥ 60n
240 ≥ 60n
240/60 ≥ n
4 ≥ n
Answer:
The maximum number of days for which a sailboat could be rented if the total cost was $ 360 is:
4 days
