Problema Solution
Two planes left San Diego at the same time to fly to sacramento. One plane averages 120 kilometers per hour and the other averages 178 kilometers per hour. How long will it take for the planes to be 70 kilometers apart? Write your answer in terms of hours,minutes, and seconds.
Answer provided by our tutors
Two planes left San Diego at the same time to fly to sacramento. One plane averages 120 kilometers per hour and the other averages 178 kilometers per hour. How long will it take for the planes to be 70 kilometers apart? Write your answer in terms of hours,minutes, and seconds.
Solution:
Time: t
178t - 120t =70
t =1.207 hours
= 72.4 minutes
= 4344.8 seconds