Supppose two trains leave Holbrook, Arizona, at the same time, traveling in opposite directions. One train travels 10 mph faster than the other. In 3.5 hours, the trains are 322 miles apart. Find the speed of each train.

4 answers

slow train --- x mph
faster train -- x+10

in 3.5 hrs,
slow train went 3.5x
fast train went 3.5(x+10)

solve for x:

3.5x + 3.5(x+10) = 322
42.42
41
train 1 = 41; train 2 = 51