Respuesta :
The number of bacteria reduces by half every minute - it can be represented by the equation:
[tex]x=x_0 \times (\frac{1}{2})^n[/tex]
where xâ‚€ is the initial number of bacteria and x is the number of bacteria after n minutes.
[tex]x_0=3000 \\ x=375 \\ \\ 375=3000 \times (\frac{1}{2})^n \\ \frac{375}{3000}=(\frac{1}{2})^n \\ \frac{1}{8}=(\frac{1}{2})^n \\ (\frac{1}{2})^3=(\frac{1}{2})^n \\ n=3[/tex]
It takes 3 minutes for the number of bacteria to reduce from 3000 to 375.
[tex]x=x_0 \times (\frac{1}{2})^n[/tex]
where xâ‚€ is the initial number of bacteria and x is the number of bacteria after n minutes.
[tex]x_0=3000 \\ x=375 \\ \\ 375=3000 \times (\frac{1}{2})^n \\ \frac{375}{3000}=(\frac{1}{2})^n \\ \frac{1}{8}=(\frac{1}{2})^n \\ (\frac{1}{2})^3=(\frac{1}{2})^n \\ n=3[/tex]
It takes 3 minutes for the number of bacteria to reduce from 3000 to 375.