331,250 views
11 votes
11 votes
Find the sum of the first 25 terms of the series:
215 + 200 + 185 +...

User Gammapoint
by
3.2k points

2 Answers

14 votes
14 votes

Answer:

875

Explanation:

I think hope it right

User Chlebta
by
3.1k points
10 votes
10 votes

Answer:

875

Explanation:

215+200+185+170+155+140+125+110+95+80+65+50+35+20+5+(-10)+(-25)+(-40)+(-55)+(-70)+(-85)+(-100)+(-115)+(-130)+(-145) =875

I'm sure there's an easier way to do this, but if you want a correct answer, here you go. Have a good day!

User Marcodor
by
3.0k points