Nestor R. answered • 08/20/19

Statistician with a very good grounding in Algebra

Let A be the speed of Train 1 and B = A - 8.3 be the speed of the second train.

Wite an equation A + (A - 8.3) = 727.7.

2A - 8.3 = 727.7

2A = 727.7+8.3 = 736.0

Solve for A: **A = 736/2 = 368 mph.**

**Train B travels at 368 - 8.3 = 359.7 mph.**

Check: 368.0+359.7 = 727.7 mph