anonymous
  • anonymous
hello i really need some help please??? The members of a team can run 500 meters between 57 seconds and 73 seconds. A. Write an absolute value inequality describing the times for the runners.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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lochana
  • lochana
you can say if the time for runners is t 57 < t < 73
lochana
  • lochana
but i am not quite sure about absolute value thing.
anonymous
  • anonymous
thank you

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lochana
  • lochana
but wait a second. I want to make sure about my answer
lochana
  • lochana
we usually absolute inequalities write something like this |x-a| > 1
lochana
  • lochana
so we need to give an answer similar to that
anonymous
  • anonymous
okay so how do we do that
lochana
  • lochana
so the answer should be |x -65| < 8
lochana
  • lochana
this means that if (x -65) is positive, you put positive of (x - 65) instead of |x -65| so x - 65 < 8 x < 73 this is one inequality we need
lochana
  • lochana
if (x - 65) is negative , you put negative of (x-65) instead of |x-65| so -(x-65) < 8 -x +65 < 8 -x < -57 x > 57 (remember you change the < into > mark when you change signs) so we get x> 57
lochana
  • lochana
I am sure about this answer now:) |x-65| < 8
lochana
  • lochana
have done absolute inequalities before?
lochana
  • lochana
have you done absolute inequalities before?

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