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April 1, 2015

Posted by **TRAY** on Wednesday, August 29, 2012 at 6:53pm.

- MATH -
**Damon**, Wednesday, August 29, 2012 at 7:09pm1 through 2*70 - 1 or 139 figure that out by experiment

average = (1+139)/2 = 70

70 * 70 = 4900

- MATH -
**Damon**, Wednesday, August 29, 2012 at 7:38pmBy the way

what we really did was :

n[(n*2-1)+1 ]/2

which is n^2

or 70^2

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