SOLUTION: April has 1 hour to spend training for an upcoming race. She completes her training by running full speed the distance of the race and walking back the same distance to cool down.
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Question 756593: April has 1 hour to spend training for an upcoming race. She completes her training by running full speed the distance of the race and walking back the same distance to cool down. If she runs at a speed of 9 mph and walks back at a speed of 3 mph how long should she plan to spend walking back? Answer by ankor@dixie-net.com(22740) (Show Source):
You can put this solution on YOUR website! she runs at a speed of 9 mph and walks back at a speed of 3 mph, how long should she plan to spend walking back?
:
let w = the walking time
the total time is given as 1 hr, therefore
(1-w) = running time
:
Walking dist and running dist is the same'
Write a distance equation; dist = speed * time
:
3w = 9(1-w)
3w = 9 - 9w
3w + 9w = 9
12w = 9
w = 9/12 = 3/4 hrs walking back
