<PRE><B>Question 909371</B>
The distance between Atlanta, Georgia, and Albuquerque, New Mexico, is about 12 70 mi.The groundspeed for jet traffic from Albuquerque to Atlanta can be about 18 % faster than the groundspeed from Atlanta to Albuquerque. Let r be the speed from Atlanta to Albuquerque in miles per hour. What is a simplified expression for the round-trip flying time? 

The distance between Atlanta, Georgia, and Albuquerque, New Mexico, is about 12 70 mi.


The groundspeed for jet traffic from Albuquerque to Atlanta can be about 18 % faster than the groundspeed from Atlanta to Albuquerque.
speed = 1.18r

Let r be the speed from Atlanta to Albuquerque in miles per hour. 

T = 1270/r + 1270/1.18r 

(1.18r*1270+1270r)/1.18r^2

(1270r(1.18+1))/1.18r^2

1076.27*2.18/r

2346.27/r





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