Problema Solution
Noah and ben are running in the same direction. Noah runs at 7 mph, ben at 5 mph. If they start at the same time, how long will it be before they are 1/5 mile apart?
Answer provided by our tutors
we will assume that they also start from the same place
let t = the time that they need to run to be 1/5 miles apart
since distance = speed*time we have
7t - 5t = 1/5
by solving we find
t = 0.1 hr
t = 6 min
click here to see the step by step solution of the equation
after 6 minutes Noah and Ben will be 1/5 mile apart.