Problema Solution
Nick and Jessica leave home going in opposite directions. Nick is walking at 3 mph, and Jessica is jogging at 6 mph. After how long will they be 3 miles apart?
Answer provided by our tutors
their combined speed, since they are heading in exactly opposite directions:
3+6 = 9
time = distance/speed
3/9 = 0.33
0.33*60 = 19.8
in just under 20 minutes (19.8) they will be 3 miles apart