1. The total hourly operating cost of the aircraft purchased by Federal Express had to be at
most $35,000. If the operating cost of the Boeing 727 was $1,400 per hour and the
operating cost for the Falcon 20 was $500 per hour, write an inequality that describes
the hourly operating cost constraint. Let x represent the number of Boeing 727s
purchased and y represent the number of Falcon 20s.