w = mg+b
so,
18m+b = 2199
44m+b = 2342
Solve for m and b, and figure w(50)
Suppose that the weight (in pounds) of an airplane is a linear function of the amount of fuel (in gallons) in its tank. When carrying 18 gallons of fuel, the airplane weighs 2199 pounds. When carrying 44 gallons of fuel, it weighs 2342 pounds. How much does the airplane weigh if it is carrying 50 gallons of fuel?
1 answer