Question

A culture of certain bacteria doubles every hour at 9 AM there were already 120 bacteria, which equation represents the number of bacteria in at 8 AM. How many bacteria were there?
Two equals 120 at 8 AM there were 60 bacteria
And over two equals 120 at 8 AM there were 240 bacteria
2N equals 120 at 8 AM there were 240 bacteria
And two equals 120 at 8 AM there were 60 bacteria

Answers

GPT 3.5
None of the provided equations represent the correct relation between the number of bacteria at 9 AM and 8 AM. The correct equation would be:

N = 120 / 2

Where N represents the number of bacteria at 8 AM.

Therefore, at 8 AM, there were 60 bacteria.