Suppose you run 3 miles from your house to a friend's house at a speed of 5 miles per hour. When the time comes to return home, you are tired and walk the same 3 miles home at 2 miles per hour. Complete parts (a) through (d) below
a. How long did you spend running to your friend's house?
hour(s)
(Type an integer or decimal rounded to the nearest tonth as needed.)
b. How long did you spend walking homo?
hour(s)
(Type an integer or decimal rounded to the nearest tenth as needed.)
c. Is it true that the average speed for the round trip is the average of 5 miles per hour and 2 miles per hour (which is 3.5 miles per hour)? (Hint: Did you spend more time traveling 5 miles per hour or 2 miles per hour?)
O A. No, because less time is spent traveling 2 miles per hour.
OB. No, because less time is spent traveling 5 miles per hour.
OC. Yes, because more time is spent traveling 2 miles per hour.
D. Yes, because less time is spent traveling 5 miles per hour.
d. What is your average speed for the round trip?
The average speed for the round trip is about miles per hour.
(Type an integer or decimal rounded to the nearest tenth as needed.)
Click to select your answer(s).