Problema Solution
Harper and ellie are having a race. Harper traveled 3 feet per second. Ellie got a head start by 5 feet and traveled 2 feet every 3 seconds. After how long did Harper catch up with ellie
Answer provided by our tutors
Harper's speed is: v1 = 3 ft/s
Ellie's speed is: v2 = 2/3 ft/s
Let 't' represent the time of the travel.
v1*t = 5 + v2*t
3t = 5 + (2/3)t
........
click here to see the equation solved for t
........
t = 2.14 s
Harper caught up with Ellie after 2.14 seconds.