A culture of a certain bacteria doubles every hour At 9 * 0a .m there were already 120 bacteria Which equation represents the number of bacteria, n. at 8:00 a m? How many bacteria were there? (1 point)

Answer 1

The equation that represents the number of bacteria, n, at any given time t is:

n = 120 * (2^(t - 9))

To find the number of bacteria at 8 a.m. (t = 8), we substitute t = 8 into the equation:

n = 120 * (2^(8 - 9))
n = 120 * 2^(-1)
n = 120 * 0.5
n = 60

Therefore, there were 60 bacteria at 8 a.m.