SOLUTION: Please help me solve this problem: 2 buses leave Houston at the same time and travel in opposite directions. 1 bus averages 55 mph and the other bus averages 45 mph. When are they

Question 779478: Please help me solve this problem: 2 buses leave Houston at the same time and travel in opposite directions. 1 bus averages 55 mph and the other bus averages 45 mph. When are they 400 miles apart?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
They are separating at the sum of their speeds

In about 4 hrs and 13 min they will
be 400 mi apart

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