lizzyyy lizzyyy

26-09-2014
Mathematics

Answered

You improve your time running a course by 5 seconds in week one, by 3 seconds in week two, and by 4 seconds in week three. What is the average weekly change in your runny time

Answer :

mariamikayla mariamikayla

26-09-2014

[tex]m_a- the \ aritmethic \ average \\ \\ m_a= \frac{5+3+4}{3}= \frac{12}{3} \\\\ \boxed{m_a=4s}[/tex]

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