Question

The following table shows the amount spent by four U.S. airlines to fly one available seat 1 mile in the second quarter of 2014.† Set up a system and then solve using technology. HINT [See the technology note accompanying Example 1.]

Airline	United Continental	American	JetBlue	Southwest
Cost (¢)	14.9	14.6	11.9	12.4

Suppose that, on a 3,000-mile New York to Los Angeles flight, United Continental, American, and Southwest flew a total of 260 empty seats, costing them a total of $111,270. If United Continental had three times as many empty seats as American, how many empty seats did each of these three airlines carry on its flight?

United Continental empty seatsAmerican empty seatsSouthwest empty seats

Answer 1

FnLk Aitine Unitid Continental ArTot Beoutuwess, Ceat cast 14, and z e 16o 100 3709 100 (2) 6564 IM. 12 42 12.12 = 1 1 260 1 '24 | 537045

t 24 1260 g㗊 O 금-초 F12 봉借礐) 3709 | → -3 0 0-4-260 260 1 1 o 1 o 25/3 55D 4- 260 o O 60