Answer:
Explanation:
To make this easier, we can calculate the apparent velocity from one of the buses, instead of a point, and since they are both in opposite directions, we can add these velocities to get:
72 - (- 88)
72 + 88
160
So from either train, the other is going 160 kilometers per hour. From this, we can determine how long they need to travel to be at least 560 km apart. Since we want our answer in hours (how long), we can get rid of the kilometers in the distance by dividing by 160 kilometers per hour, but since there are 160 kilometers in an hour (with this velocity), this will not change anything because it is the same as dividing/multiplying by 1.
560 hours / (160 kilometers per hour)
3.5 hours [kilometers cancel out leaving us with hours]
Therefore, it will take 3.5 hours for the buses to be 560 kilometers apart.
I hope this helps! Good luck with your studies as well, and have a great day.
colemaikell08
