Originally Posted by

**Henryt999** I have the following problem, Im not sure this is a calculus problem but I didnīt know where else to post it...

A body is found in a room with the temperature 5degrees.

Att 06.00 the body temperature is 23 degrees

att 08.00 the temperature is found to be 18.5degrees.

When did the murder occur?

Suppose to you Newtons cooling law: y' =-k(y-yg) there yg = temperature of the room...

Well so I have y' = -ky +ky(g) = y' +ky = 25k

So the general solution is y = Ce^(kx)

The body temp at the murder was 37degrees

And here Im stuck....