Question 848325
_______________speed__________time_________distance
Plane A________r______________t+1
Plane B________r+300__________2.5


Think carefully about this.  The travel time for B is t.  The difference in time quantities between the two planes is 1 hour, plane A requiring one hour more than plane B.


_______________speed__________time_________distance
Plane A________r______________{{{2.5+1=3.5}}}____{{{d=r*3.5}}}
Plane B________r+300__________2.5__________{{{d=(r+300)*(2.5)}}}



The two distances, d, are equal.  Find r.