SOLUTION: oceanside stables offers scenic tours on horseback. a 4-hour tour averaged 3 miles per hour. if the average rate was 2.5 miles per hour for the first 3 hours. what was the average

Question 617818: oceanside stables offers scenic tours on horseback. a 4-hour tour averaged 3 miles per hour. if the average rate was 2.5 miles per hour for the first 3 hours. what was the average rate for the last hour?
how do you set this up?
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
A 4 hour tour averaged 3 miles per hour.
if the average rate was 2.5 miles per hour for the first 3 hours, what was the average rate for the last hour?
:
Let s = av speed on the last hr
:
write a distance equation; dist = speed * time
:
2.5(3) + 1s = 3(4)
7.5 + s = 12
s = 12 - 7.5
s = 4.5 mph av speed, the last hr
:
:
Check this by finding the total distance
2.5(3) + 4.5(1) =
7.5 + 4.5 = 12 mi total

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