Posted by **sarah** on Monday, April 22, 2013 at 1:52am.

1)find the sum of the odd integers from 25 to 75

2)find the sum of the first 20 terms in the series 10+5+2.5+1.25... .

please show the steps to solve the problem^_^

- math -
**Anonymous**, Sunday, August 28, 2016 at 12:12pm
88

## Answer This Question

## Related Questions

- college math - I do not understand a problem from a text book or how to solve ...
- Math - the sum of the first n terms of an arithmetic series is -51. the series ...
- arithmetic - 1. The first and last term of an A.P are, a and l respectively, ...
- arithmetic - 1. The first and last term of an A.P are, a and l respectively, ...
- Math....Please help I have a deadline for tonight! - Use the geometric sequence ...
- Math - 1) If the sum of the first n terms of a series is Sn where Sn=2nē-n, (a)...
- math - 1) If the sum of the first n terms of a series is Sn where Sn=2nē-n, (a)...
- Algebra II - Find 4 consecutive odd integers such that 5 times the sum of the ...
- Math *URGENT - Please give the answers and solutions for each. 1.If the second ...
- Algebra 2 - I need steps on how to complete this please i am so confused and ...

More Related Questions