The correct equation is 2n = 120, where n represents the number of bacteria at 8:00 a.m.
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.
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? (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.
1 answer
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