SOLUTION: The time (t) of travel on an automobile trip varies inversely as the speed (v) of the automobile. Traveling at an average speed of 45 mph, a trip took 4 h. The return trip took 5 h
Question 1197040: The time (t) of travel on an automobile trip varies inversely as the speed (v) of the automobile. Traveling at an average speed of 45 mph, a trip took 4 h. The return trip took 5 h. Find the average speed on the return trip.
v=_________? Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
Hi
t varies INVERSELY as v
That is: t = k/v
Given:
t = 4 h when v = 45mph
4 h= k/45mph,
find v when t = 5 h
t = k/v 0r v = k/t
v = = 36mph
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