Seth is deciding whether or not he should become a member of the YMCA to use their volleyball courtsThe membership cost is $138 Members pay $7 to rent the volleyball courtsNon-members can rent the court also, but they have to pay $9 each timehow many times would Seth need to rent the court in order for it be cheaper to be a member than a non member?

Answer 1

Let x be the number of times Seth would need to rent the court for it to be cheaper to be a member than a non-member.
For members, the total cost would be 138 + 7x.
For non-members, the total cost would be 9x.
We can set up the inequality 138 + 7x < 9x and solve for x:
138 < 2x
69 < x
So Seth would need to rent the court at least 70 times for it to be cheaper to be a member than a non-member.