Question

There were

42 passengers on a local airplane flight. First-class fare was $80, and coach fare was $64. If the revenue for the flight totaled to $2,880, how many first-class and how many coach passengers paid for the flight?

Answer 1

64x+80 (42-x)=2880
Solve for x
X=30 coach fare

42-30=12 First-class fare