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March 28, 2017

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I need help please. I answered (c)incorrectly.


Chantal and Julia ride horses in the same race. Chantal's horse finishes in one minute and 59.53 seconds. If Julia's horse runs 2.25 percent slower than Chantal's, how long does it take Julia's horse to finish the race? Round your answer to the nearest hundredth of a second.
Chantal and Julia ride horses in the same race. Chantal's horse finishes in one minute and 59.53 seconds. If Julia's horse runs 2.25 percent slower than Chantal's, how long does it take Julia's horse to finish the race? Round your answer to the nearest hundredth of a second.


(a)2 minutes and 2.91 seconds
(b)2 minutes and 1.97 seconds
(c)2 minutes and 2.22 seconds
(d)2 minutes and 2.28 seconds

  • Math - 8th Grade - ,

    T1 = 60 + 59.53 = 119.53 s=Chantal time

    T2 = 119.53 * 1.0225 = 122.219 s. =
    2 Min and 2.22 s. = Julia's time.

  • Math - 8th Grade - ,

    B?

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