SOLUTION: Mario’s airplane uses fuel at a constant rate. At the start of the trip the fuel tank is full. After the first 5 hours of flying there are 95 gallons remaining in the tank. After 1

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Question 881711: Mario’s airplane uses fuel at a constant rate. At the start of the trip the fuel tank is full. After the first 5 hours of flying there are 95 gallons remaining in the tank. After 11 more hours there are 40 gallons remaining in the tank. Provide an equation for the situation.
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
In 11 hours, we know he used 55 (95-40) gallons
He uses 5 gallons an hour.
He started with 120 (95+25) gallons
(0,120)
(5,95)
y = 120-5x
or
(5,95)
(16,40)
y = 120-5 x
or
(5,25)
(16,80)
y = 5x
fuel (y) used per hour (x)