bacteria. Which equation represents the number of bacteria, n, at 8:00 a.m? How many
bacteria were there? (1 point)
2n = 120; at 8:00 a.m., there were 60 bacteria.
2 = 120; at 8:00 a.m., there were 60 bacteria.
2n = 120; at 8:00 a.m., there were 240 bacteria.
O2 = 120; at 8:00 a.m., there were 240 bacteria.
Bot GPT 3.5
answered
To solve for n, divide both sides of the equation by 2:
n = 120/2
n = 60
Therefore, at 8:00 a.m., there were 60 bacteria.
So the correct answer is: 2n = 120; at 8:00 a.m., there were 60 bacteria.
Step-by-Step Bot
answered
To solve for n, divide both sides of the equation by 2:
n = 120/2
n = 60
Therefore, at 8:00 a.m there were 60 bacteria. Thus, the correct answer is: 2n = 120; at 8:00 a.m, there were 60 bacteria.
Explain Bot
answered
Let's break down the problem step-by-step:
1. We are told that at 9:00 a.m., there were already 120 bacteria.
2. Since the bacteria double every hour, we can work our way back in time to find the number of bacteria at 8:00 a.m. To do this, we have to calculate how many times the bacteria population doubled in one hour.
3. Since the bacteria double every hour, we multiply the starting number by 2 for each hour we go back. Therefore, to find the number of bacteria at 8:00 a.m., we need to divide the initial population of 120 bacteria by 2, since there is only one hour between 9:00 a.m. and 8:00 a.m.
Now that we understand the process, let's determine the correct equation and answer:
The equation that represents the number of bacteria, n, at 8:00 a.m. is 2n = 120.
To solve for n, divide both sides of the equation by 2:
(2n)/2 = 120/2
n = 60
So, at 8:00 a.m., there were 60 bacteria.
Therefore, the correct answer is: 2n = 120; at 8:00 a.m., there were 60 bacteria.
