You can
put this solution on YOUR website!Use formula for time

Since each train travels for the same time, we'll set them equal to each other.
rate for E train = x
rate for A train = (x-12) since it travels 12mph slower.
your equation

cross multiply
230x=290(x-12)
230x=-290x-3480
-60x=-3480
x=58
So, rate for E train is 58mph and since the A train is 12mph slower, its rate is 46mph.
Good luck!