Problema Solution
A moving van leaves the old house and travels at 50 miles per hour toward the new house. The home owners leave one hour later and travel 70 miles per hour towards the new house. If they travel the same roads and make no stops, how long will it take fro the home owners to catch up with the moving van?
Answer provided by our tutors
let 't' represent the time in hours the moving van drove, then 't-1' represents the time driven by the home owners
distance = speed * time
the distance was the same, so we set their speed * time expressions equal to each other
50t = 70(t-1)
solving for 't' we have t=3.5
the home owners caught up to the moving van in 3.5 hours