# Question #515bb

##### 1 Answer

Dec 8, 2017

About

#### Explanation:

The differential equation in this model is follows.

Now, let's solve this.

[1] Let

[2] Separate variables:

[3] Integrate both sides;

Therefore, the result is

Plug in the given value.(

When

When

Here are some useful tips:

https://www.khanacademy.org/math/differential-equations/first-order-differential-equations/exponential-models-diff-eq/v/newtons-law-of-cooling