Problema Solution
Tommy drove 238 miles in 5 hours. How long will it take him to travel the next 72 miles, if he continues at the same speed. (Give your answer in minutes)
Answer provided by our tutors
let
d1 = 238 mi
t1 = 5 hr
v = the average speed of Tommy
d2 = 72 mi
t2 = the time of the 72 miles travel
the average speed = total distance/time
v = d/t
v = 238/5
v = 47.6 mph
since the average speed = distance/time => time = distance/average speed
t2 = d2/v
t2 = 72/47.6 hr
t2 = (72/47.6)*60 min
t2 = 90.76 min
it will take him 90.76 min to travel the next 72 miles.