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A couple wishes to rent a car for one day while on vacation. Ford Auto Rental wants $35.00 per day and 14¢ per mile, while Chevrolet-For-A-Day wants $34.00 per day and 16¢ per mile. After how many miles would the price to rent the Chevrolet exceed the price to rent a Ford?

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3 answers
  1. f=35+15m
    c=34+16m

    if c>f
    34+16m>35+15m
    subtract 34 from each side, then subtract 15m from each side.

    m>1 so at 1.05 miles, the c exceeds the f.

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  2. Ford rental: cost = 35 + .14x, where x is the number of miles
    Chevy rental: cost = 34 + .16x

    when is 34 + .16x > 35 + .14x
    .02x > 1
    x > 1/.02
    x > 50

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  3. Thanks Reiny

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