If Olivia drove x km at 60 km/h and then twice as far at 80 km/h. In terms of x, how many hours did the trip take? Give the answer in simplest terms

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  1. the time for the first trip was x/60 hrs
    the time for the second trip was 2x/80

    so the total time was x/60 + 2x/80
    = x/24 hours

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