Problema Solution
Two cars leave town at the same time going in the same direction. One travels at 35 mph and the other travels as 54 mph. In how many hours will they 76 miles apart?
Answer provided by our tutors
let
v1 = 35 mph the rate of the first car
v2 = 54 mph the rate of the second car
d = 76 mi the distance between them
t = the time of the travel
since v = d/t we will use the d = v*t
v2*t - v1*t = d
(v2 - v1)*t = d
(54 - 35)*t = 76
by solving we find
t = 4 hr
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in 4 hours they will be 76 miles apart.