Question

PLEASE HELP !!!!!!!!!!!!!!!!!!!!!!!!!!
A culture of bacteria contains 150 bacteria at time zero. Find the number of the bacteria.

a) After 5 hours if their number doubles every hour.
b) After 7 hours if their number triples every hour.

Answer 1

doubles every hour
first hour \(150\times 2\)
second hour \(150\times 2^2\)
third hour \(150\times 2^3\) etc

Answer 2

Wouldn't we have to use Pert?

Answer 3

no, not at all

Answer 4

compute \[150\times 2^5\] is all

Answer 5

Is there a specific formula for this?

Answer 6

don't get married to formulas
doubles every hour means... every hour it doubles
in five hours it will double five times

Answer 7

Thanks!

Answer 8

yw