Mathematics

Question

Cheyenne drove 3000 miles in 75 hours. At this rate, how long will it take her to drive 4000 miles?

2 Answer

  • set up a proportion:
    [tex] \frac{3000}{75} [/tex]=[tex] \frac{4000}{x} [/tex]
    To solve cross multiply:
    3000x=300000
    divide both sides by 3000:
    3000x/3000=300000/3000
    x=100

    It will take her 100 hours to drive 4000 miles assuming she continues to travel at this rate.

  • 100 hours is your answer
    3000/75=40mph
    4000/40=100 hours
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