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30 March, 09:17

Julie swam, biked, and ran in a 22.2 mile triathlon. She completed the race in

2.15 hours. The function m = 13.8h represents the miles m Julie biked in

h hours. Was her average speed biking less than or greater than her average

speed for the entire race? Justify your answer. Round to the nearest tenth if

necessary.

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Answers (1)
  1. 30 March, 09:25
    0
    Average speed of biking is greater than average speed for the entire race.

    Step-by-step explanation:

    Total distance Julie traveled in triathlon = 22.2 miles

    Total time taken = 2.15 hours.

    We have

    Total distance = Average speed x Time taken

    22.2 = Average speed x 2.15

    Average speed = 10.33 miles per hour.

    We also have the function m = 13.8h represents the miles m Julie biked in h hours. This is also similar to

    Total distance = Average speed x Time taken

    m = 13.8 h

    Average speed of biking = 13.8 miles per hour.

    Average speed of biking > Average speed for the entire race

    Average speed of biking is greater than average speed for the entire race.
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