Question 1054813
x is the speed of the first train, and xt=distance at t hours
(x+85) is the speed of the second train.
8x=3(x+85), since the first train has traveled for 8 hours by 11 p.m.
8x=3x+255
5x=255
x=51 mph
x+85=136 mph
From 3 to 11 is 8 hours or 408 miles at 51 mph
From 8 to 11 is 3 hours or 408 miles at 136 mph