Asked by Anonymous
You improve your time running a course by 5 seconds in a week by 3 seconds in week 2 and 4 seconds in week 3 what is the mean weekly change in your running time
Answers
Answered by
Anonymous
[x+(x-5)+(x-8)+(x-12)] / 4
=
or
[x+(x-5)+(x-3)+(x-4)] / 4
=
or
[x+(x-5)+(x-3)+(x-4)] / 4
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