Please give me a step-by-step

timer Asked: Nov 25th, 2015

Question description

Please give me a step-by-step answer to this difficult word problem. The minimum requires length of a runway depends on the maximum allowable takeoff weight (mtw) of a specific plane. This relationship can be approximated by the following function: L(x)=2085lnx-14900, where l(x) represents the required length of a runway in feet, for a plane with x mtw in pounds. Answer the following questions
a) The airbus-320 has a 169750 pounds mtw. What minimum runway length is required for takeoff?
b) A Learjet 30 model requires a runway of 5550 feet to takeoff safely. What is its mtw?

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