Question 1068591
 Nick and James leave home going in opposite directions.
 Nick is walking at 3 mph and James is jogging at 6 mph.
 After how long will they be 3 miles apart?
:
let t = time for this to be true
write a dist equation: dist = speed * time
3t + 6t = 3
9t = 3
t = 3/9 = 1/3 hr or 20 min