The average round trip speed S (in mph) of a vehicle traveling a distance of d miles in 2d each direction is given by S = d where d and r2 are the rates of speed for the + - - initial trip and the return trip, respectively. Suppose a m otorist travels 100 miles to an event and averages 50 mph for the trip to the event. Determin e the average speed necessary for the return trip if the motorist wants the average speed for the round trip to be at least 60 mph. Round to one decimal place, if necessary.

The average round trip speed S (in mph) of a vehicle traveling a distance of d miles in 2d each direction is given by S = d where d and r2 are the rates of speed for the + - - initial trip and the return trip, respectively. Suppose a m otorist travels 100 miles to an event and averages 50 mph for the trip to the event. Determin e the average speed necessary for the return trip if the motorist wants the average speed for the round trip to be at least 60 mph. Round to one decimal place, if necessary.

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter4: Polynomial And Rational Functions

Section4.3: Zeros Of Polynomials

Problem 67E

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