Each hour, the number of bacteria in Dr. Nall’s petri dish tripled. What percent is the population compared to the population th
e hour before?
A. 3%
B. 30%
C. 130%
D. 300%
2 answers:
Answer:
Option D. 300%
Step-by-step explanation:
Let the number of bacteria in Dr Nall's petri dish = x
After one hour number of bacteria in the petri dish = 3x
So the percentage of the population compared to the population the hour before will be
= 
= 
= 300%
Therefore, Option D. will be the answer.
THE ANSWER IS THE D!!!!!!!!!!!!
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