How do i solve a system of pdes using pdepe function handle?

Hi,

Kindly i have a system of 13 equations (i give two of them below) that i want to solve using pdepe function handle (or any other handle that someone could suggest).

t=[0:282] % time in days

z=[0:44] % distance in cm

dX/dt=w*(C/(C+K)*X-b*X

dC/dt=-u*dC/dz+D*d^2*C/dz^2+1/Y*w*(C/(C+K)*X

Please can someone assist?

Thanks in advance.