# bacteria culture

• July 6th 2006, 08:07 AM
kwtolley
bacteria culture
Bacteria culture started with a count of 480 at 8:00am and after t hours is expected to grow to f(t)=480(3/2)^t. Estimate the number the number of bacteria in the culture at noon the same day. My answer is 2430, thanks for checking my answer.
• July 6th 2006, 08:46 AM
Soroban
Hello, kwtolley!

Quote:

Bacteria culture started with a count of 480 at 8:00am and after $t$ hours
is expected to grow to: $f(t)\,=\,480\left(\frac{3}{2}\right)^t$

Estimate the number the number of bacteria in the culture at noon the same day.

My answer is $2430$.
"Noon the same day" means $t = 4$.

$f(4)\;= \;480\left(\frac{3}{2}\right)^4 \;= \;2430$ . . . Good for you!

• July 6th 2006, 09:09 AM
kwtolley
thanks
Thank yo very much for checking my answer.