SOLUTION: The time required to drive from Duluth to Fargo varies inversely with the speed of the car. If the trip takes 6.25 hours at 40 mph, what speed is required to make the trip in 4 hou
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Question 282361: The time required to drive from Duluth to Fargo varies inversely with the speed of the car. If the trip takes 6.25 hours at 40 mph, what speed is required to make the trip in 4 hours?
A) 6.4 mph B) 0.625 mph C) 25.6 mph D) 8.44 mph E) 62.5 mph
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
r*t=d
t=d/r
6.25*40=x*4
6.25*10=x
62.5=x
E) 62.5 mph
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