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Bob drove 120 miles on his vacation. He drove an average of 1.2 times faster on the 2nd 60 miles of his trip than he did on the first half of the trip. Which expression represents the time he spend driving? Let x=his speed on the first half of the trip.

• 110/x
• 120/x
• 132x
• 132/x

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5 answers
  1. since time = distance/speed, hos total time is

    60/x + 60/1.2x
    60/x + 50/x
    110/x

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  2. Thanks much

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  3. Answers??

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  4. 260

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  5. 110 is the awnser

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