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December 22, 2014

December 22, 2014

Posted by **Anonymous** on Monday, December 10, 2012 at 11:49am.

- math - incomplete -
**Ms. Sue**, Monday, December 10, 2012 at 11:54amWhich integers?

- Math -
**PsyDAG**, Monday, December 10, 2012 at 12:15pmIf x = smallest integer,

x + (x+2) + (x+4)… + (x+12) = ?

- Math -
**Steve**, Monday, December 10, 2012 at 3:59pmsum of 1st 7 odds is 7^2 = 49

so, if you start with 2k+1 instead of 1, then each odd number is increased by 2k, so you wind up with 7*2k + 49

check: let k=5 and you have

11+13+15+17+19+21+23 = 119 = 7*10+49

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