SOLUTION: Matos family took a trip to visit some relatives. They drove for 2 1/2 hours at 55 mph to get there, but the trip home took them 15 minutes longer. At what speed were they travelin

Question 932693: Matos family took a trip to visit some relatives. They drove for 2 1/2 hours at 55 mph to get there, but the trip home took them 15 minutes longer. At what speed were they traveling on the drive home?
Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
s = d/t
d = st
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distance to relative's house:
d = 55*2.5
---
speed returning home:
s = (55*2.5)/(2.5+0.25)
s = 55 mph
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