# Differential equations

1. Apr 18, 2014

### kyu

1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution

-2 ln |20-2h| = kt + c

kinda lost. solving (i) would be enough for me

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2. Apr 18, 2014

### Zondrina

The first part of the question is asking you to solve the separable differential equation. It looks like your solution is fine to me. Except you need to re-arrange it a bit. Solve for $h(t)$.

The second part of the question is 'hinting' at an initial condition. In particular: $h(5) = 2$. So what does that tell you about the rest of the information?