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Homework Help: Equation from a riddle

  1. Mar 12, 2010 #1
    1. The problem statement, all variables and given/known data

    Best Rentals charges a daily fee plus a mileage fee for renting its cars. Jack was charged 40 $ for 500 kilometers, while Kelly was charged 70 $ for 1000 kilometers. What does Best Rental charge per day and per kilometer?

    3. The attempt at a solution

    I want to confirm my steps if it's right ,,,,

    x+500y=40 and x+1000y=70

    by using the system of the equations i will get the answer

    am I right ?
  2. jcsd
  3. Mar 12, 2010 #2


    User Avatar
    Science Advisor

    Looks OK to me.
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