SOLUTION: The time t for a car to travel from Macon to Atlanta is inversely proportional to the speed, R. If it takes 1.75 hours to travel betweeem the two cities at 55mph, find in hours th

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Question 1059302: The time t for a car to travel from Macon to Atlanta is inversely proportional to the speed, R. If it takes 1.75 hours to travel betweeem the two cities at 55mph, find in hours the time to travel between the two cities at 70 mph
Answer by ikleyn(52797) About Me  (Show Source):
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The time t for a car to travel from Macon to Atlanta is inversely proportional to the speed, R.
If it takes 1.75 hours to travel between the two cities at 55 mph, find in hours the time to travel between the two cities at 70 mph
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The distance between the two cities is  D = R*T = 55*1.75 miles.


The time to cover it at the speed of 70 mph is  T = D%2FR = %2855%2A1.75%29%2F70 = 1.375 hours = 1 3%2F8 hours.