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Average speed question

  1. Nov 3, 2009 #1
    If a car travels at a distance of x^3+60x^2+x+60 miles at an average speed of x+60 miles per hour, how long does the trip take??




    not sure how to solve this problem either, Its in the whole chapter of dividing polynomials, so I tried dividing .. it all just basically said that it was a root?? i guess confused what to do...
     
  2. jcsd
  3. Nov 4, 2009 #2
    Try reading http://www.purplemath.com/modules/polydiv2.htm" [Broken]

    It has a good explanation and an example.
     
    Last edited by a moderator: May 4, 2017
  4. Nov 4, 2009 #3

    HallsofIvy

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    Velocity is "distance divided by time": v= d/t so tv= d and t= d/v. Yes, you want to divide [itex]x^3+ 60x^2+ x+ 60 by x+ 60.
     
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