# How do you find the value of your investment after five year's growth if you invest $2000 in a bank offering 10% interest compounded weekly?

##### 1 Answer

I would use the compound interest formula:

Where

and

Find the value of your investment after five year's growth if you invest $2000 in a bank offering 10% interest compounded weekly

Find

So

And,

Use tables or electronics (or a slide rule if you have one and can use it) to evaluate this expression.

**Note**

Sometimes, instead of time in years, we just give the number of periods. For example:

Find the value of your investment after 100 months growth if you invest $5000 in a bank offering 10% interest compounded monthly

Here