Aidan is a sales manager for a company that rents beach condominiums. Their sales for the first four days of this week were $8200, $9100, $9300, and $7400. What is the minimum sales Aidan’s team must achieve on Friday for the 5-day average to be at least $9000?

Question

Aidan is a sales manager for a company that rents beach condominiums.  Their sales for the first four days of this week were $8200, $9100, $9300, and $7400.  What is the minimum sales Aidan’s team must achieve on Friday for the 5-day average to be at least $9000?

oobleck · Answer

8200 + 9100 + 9300 + 7400 + x ≥ 5*9000 x ≥ 11000