document.write( "Question 367043: What is the mean of the integers -49,000 to 50,000 inclusive? \n" ); document.write( "

Algebra.Com's Answer #261698 by robertb(5830) $\"\"$ $\"About$

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First term is a1 = -49000, common difference is d = 1, so an = -49000+(n-1)*1 = -49,000+n-1 = n -49,001. If an = 50,000, then 50,000 = n - 49,001, or n = 99,001. So there are 99,001 terms in the sequence. The sum of all these terms is $\"%2899001%2F2%29%2A%28-49000+%2B+50000%29+=+99001%2A500\"$ . The average of all these numbers is then $\"%2899001%2A500%29%2F99001+=+500\"$ \n" ); document.write( "

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