a culture of a certain bacteria doubles every hour at 9:00 a.m. there were already 120 bacteria which equation represents the number of bacteria, n, at 8:00 a.m. how many bacteria were there

Answer 1

To find the number of bacteria at 8:00 a.m., we need to find how many times the culture doubles from 8:00 a.m. to 9:00 a.m.

Since the culture doubles every hour, from 8:00 a.m. to 9:00 a.m., which is a span of 1 hour, the culture double once.

Therefore, the equation that represents the number of bacteria, n, at 8:00 a.m. is:

n = 120 / 2

Simplifying the equation:

n = 60

So, there were 60 bacteria at 8:00 a.m.