SOLUTION: A group can charter a particular aircraft at a fixed total cost. If 36 people charter the aircraft rather than 40 people, then the cost per person is greater by $12. What is the co

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Question 164170: A group can charter a particular aircraft at a fixed total cost. If 36 people charter the aircraft rather than 40 people, then the cost per person is greater by $12. What is the cost per person if 40 people charter the aircraft
Answer by alicealc(293) About Me  (Show Source):
You can put this solution on YOUR website!
Let:
the cost per person if 40 people charter = x
then the cost per person if 36 people charter = x + 12

because the total cost is fixed:
36*(x + 12) = 40*x
<=> 36x + 432 = 40x
<=> 432 = 40x - 36x
<=> 432 = 4x
<=> x = 432/4 = 108
so the cost per person if 40 people charter is $108