The number of bacteria in a certain culture triples every hour. If they were 50, bacteria presented in the culture originally, what would the number of bacteria in 3rd hour,5 th hour, 10th hour,11 th hour.Please friends send me the answer.
Answers
Answered by
14
Answer:
3rd Hour: 450
5th Hour: 4,050
10th Hour: 984,150
11th Hour: 2,952,450
Step-by-step explanation:
The key term to look for in this problem is triple. If you started with 50, the amount will triple each hour. So, you take 50 and multiply it by three to get the amount of bacteria in the second hour, which is 150. Then to get the third hour, you do that again. 150 x 3 = 450. Etc..
jb26241:
If you need further explanation, as to what equation to use to make this process faster instead of how I explained it, please just ask and I will be happy to help! :)
please te me further explanation
This type of problem has exponential growth, so you would use an exponential equation with the given data. The first term is 50. To get the zero term, you would have to do the opposite of multiplying by 3, which is dividing by 1/3. 50 divided by 1/3 = 16.66.
Then, take the zero term, which is 16.66, and apply it into the equation. y=(16.66)(3)^x
if you want to solve for the 11th term, you would substitute 11 in for the x term. y=(16.66)(3)^11
Answered by
14
Answer:
Step-by-step explanation:
in 1hr =50 bacterias
then,
3hr = 3x50 = 150 bacterias
5th hr = 5x50 = 250 bacterias
10th hr = 10x50 = 500 bacerias
11th hr = 11x50= 550 bacterias
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This is incorrect. It multiplies by each hour and you need to keep multiplying depending on what the previous term was. So if you are at 50 hour one, the second would be 150. Then multiply 150 by 3 for the third hour.
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