# Thread: engineering economics homework help #2

1. ## engineering economics homework help #2

I was wondering if someone could tell me if i have done this correctly, its very difficult for me to find help with these sorts of questions.
Thank you in advance.

2. Originally Posted by testing12
I was wondering if someone could tell me if i have done this correctly, its very difficult for me to find help with these sorts of questions.
Thank you in advance.

$\displaystyle\text{PV}=\sum_{i=0}^{\infty}\left[\frac{531.90+130.29\cdot i}{1.1093^i}\right]$

$\displaystyle\Rightarrow\text{PV}=\sum_{i=0}^{\inf ty}\left[\frac{531.90}{1.1093^i}+\frac{130.29\cdot i}{1.1093^i}\right]$

$\displaystyle\Rightarrow\text{PV}=531.90\cdot\sum_ {i=0}^{\infty}\left[\frac{1}{1.1093}\right]^i+\sum_{i=0}^{\infty}\left[\frac{130.29\cdot i}{1.1093^i}\right]$