Hi

5/3 + 15/3 + 25/3 +....(10n-5)/3 = 125/3

solve for n

actually i know the what answer is

i wondering which way you prefer to solve for this

Thanks best regards

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- Nov 4th 2012, 03:42 PMblackjack21Basic sum of terms equation
Hi

5/3 + 15/3 + 25/3 +....(10n-5)/3 = 125/3

solve for n

actually i know the what answer is

i wondering which way you prefer to solve for this

Thanks best regards - Nov 4th 2012, 04:07 PMskeeterRe: Basic sum of terms equation
sum of an arithmetic series ...

solve for - Nov 4th 2012, 04:21 PMpickslidesRe: Basic sum of terms equation
the second term is 15/13 or 15/3 ?

- Nov 4th 2012, 06:49 PMSorobanRe: Basic sum of terms equation
Hello, blackjack21!

Quote:

Multiply by

The left side is an arithmetic series with first term ,

. . common difference , and terms.

Its sum is: .

Therefore: .

- Nov 5th 2012, 01:57 AMblackjack21Re: Basic sum of terms equation
- Nov 5th 2012, 01:59 AMblackjack21Re: Basic sum of terms equation
thanx for the two diffrent solution better for me

Thanks and best regards