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September 15, 2014

September 15, 2014

Posted by **kheem** on Thursday, March 7, 2013 at 8:02am.

- math -
**Reiny**, Thursday, March 7, 2013 at 10:27amso you want

25+26+.. for 30 terms

an arithmetic series where a=25 , d=1 ,and n=30

sum(3) = (30/2)(50 + 29(1)) = 1185

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