SOLUTION: a bus traveled from one city to another at an average rate of 50 mph. on the return trip, the average rate was 45 mph and the elapsed time was 15 minutes longer. What is the total

Question 344040: a bus traveled from one city to another at an average rate of 50 mph. on the return trip, the average rate was 45 mph and the elapsed time was 15 minutes longer. What is the total distance traveled?
I know that it is a distance problem. D=R*T. Where R=50 mph and R=45 mph. How do I find the total time? The elapsed time is confusing me.
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Going,
1.
Coming back,
For consistent units, convert minutes to hours.
15 minutes = 1/4 hours
2.
From eq. 1,

Substitute into eq. 2,

Multiply both sides by

Finish the calculation to find .

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