Problema Solution
10 minutes at 27 miles an hour. How long at 40 miles an hour?
Answer provided by our tutors
let
t1 = 10 min = 10/60 hr = 1/6 the time
v1 = 27 mph the speed
v2 = 40 mph
t2 = ?
since the distance = time*speed we have
v1*t1 = v2*t2
t2 = (v1*t1)/v2
t2 = (27*(1/6))/40
t2 = 0.1125 hr
t2 = 0.1125*60 min
t2 = 6.75 min
6.75 min at 40 miles per hour.