SOLUTION: A family drove to a resort at an average speed of 25 mph and later returned over the same road at an average speed of 40 mph. Find the distance to the resort if the total driving t

Question 925400: A family drove to a resort at an average speed of 25 mph and later returned over the same road at an average speed of 40 mph. Find the distance to the resort if the total driving time was 13 hours.
Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
s = d/t
d = st
---
average speed for the whole trip:
s = (25 + 40)/2
s = 32.5 mph
---
total distance driven:
d = 32.5*13
d = 422.5 miles
---
distance to resort:
d/2 = 422.5/2
d/2 = 211.25 miles
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