# SOLUTION: Trying to find the sum 41+42+43+44+.....+118

Algebra ->  Algebra  -> Sequences-and-series -> SOLUTION: Trying to find the sum 41+42+43+44+.....+118      Log On

 Ad: Algebrator™ solves your algebra problems and provides step-by-step explanations! Ad: Algebra Solved!™: algebra software solves algebra homework problems with step-by-step help!

 Algebra: Sequences of numbers, series and how to sum them Solvers Lessons Answers archive Quiz In Depth

 Question 619384: Trying to find the sum 41+42+43+44+.....+118Found 2 solutions by ewatrrr, nerdybill:Answer by ewatrrr(10682)   (Show Source): You can put this solution on YOUR website! ``` Hi, finding the sum of sequence: 41+42+43+44+.....+118 Arithmetic Sequence with and d = 1 n = 118-41 + 1 n = 78 ```Answer by nerdybill(6961)   (Show Source): You can put this solution on YOUR website!Trying to find the sum 41+42+43+44+.....+118 . Partial sum of an arithmetic sequence: S = n((a1+an)/2) where S = sum of n numbers n = 118-40 = 78 a1 = 41 an = 118 . S = 78((41+118)/2) S = 78(159/2) S = 78(79.5) s = 6201