SOLUTION: What is the sum of the first ten positive integers? a)50 b)55 c)95 d)100

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Question 41025: What is the sum of the first ten positive integers?
a)50
b)55
c)95
d)100
Answer by Nate(3500) About Me  (Show Source):
You can put this solution on YOUR website!
SUM+=+%28n%2F2%29%28a1+%2B+an%29 where a1 is the first term and an is the second term and n is the number of terms
SUM+=+%2810%2F2%29%281+%2B+10%29
SUM+=+%285%29%2811%29
SUM+=+55