Sunday

March 1, 2015

March 1, 2015

Posted by **M** on Wednesday, September 1, 2010 at 8:10pm.

- math -
**bobpursley**, Wednesday, September 1, 2010 at 8:16pmSo what is the sum of 3+4+5+...37+38 ?

It is an arithemetic sum, first term 3, d=1

http://en.wikipedia.org/wiki/Arithmetic_progression

n= 36 terms

Sum= n/2 (2a+(n-1)d)

**Answer this Question**

**Related Questions**

Math - A book has n consecutive pages torn out (each paper in a book has two ...

algebra - A book has N consecutive pages torn out. Suppose A is the last ...

algebra - A student opens a math book to two facing pages.The product of the ...

Math/Algebra - A student opens a mathematics book to two facing pages. The ...

algebra - The sum of two page numbers on facing page of a book is 81. What are ...

math - A student opens a mathematics book to two facing pages. The product of ...

algebra - A student opens a mathematics book to two facing pages. The product of...

math - The sum of the page numbers on the facing pages of a book is 457. Find ...

Math - Pages in a book are numbered in typical fashion, starting with !. The ...

Math - Pages in a book are numbered in typical fashion, starting with !. The ...