# Rearange to find P

• August 19th 2009, 09:39 PM
Rapid_W
Rearange to find P
$12.6101579= (0.98\times (3ln(300000-P))) + (0.02\times (3ln(299500-P)))$

Please could somebody go through step by step how to make P the subject and solve it for me as well please.
• August 19th 2009, 10:12 PM
Hello Rapid_W
Quote:

Originally Posted by Rapid_W
$12.6101579= (0.98\times (3ln(300000-P))) + (0.02\times (3ln(299500-P)))$

Please could somebody go through step by step how to make P the subject and solve it for me as well please.

I don't think you can solve this equation by algebraic means. Can we see the original question, please?

• August 19th 2009, 10:39 PM
Rapid_W
Not really an algebra field, but seen as you asked nicely:

An individual’s utility function is represented by

U(x) = 3ln(x), where x, his total wealth including the value of his stamp collection, is £300,000.

There is a 2% probability of theft or fire, which would make his collection, worth £20,000 worthless.

The utility function of an insurance company is represented by
U(x) = ln (x + 100,000)
where x denotes the value of the company’s assets which are currently valued at £1,000,000.

Show that the individual would be prepared to accept a
policy where he would pay a premium of £300 and the first
£500 of a claim, so that the insurance company would pay
out an amount in excess of £500.