maddy1x3
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Mrs. Galicia is watching the bacterial population grow at a rate of 30% per year. The bacteria population originally started at 20. After 8 years how many bacteria will be present?
A: 163
B: 208
C: 180
D: 36

Respuesta :

Answer:

A: 163

Step-by-step explanation:

Pit this in your calculator exactly like this 20(1.30)^8 Then hit x^y  to the power of 8 and you get the answer 163.1461442 So round your answer to the nearest whole number, will be 163.

MrRoyal

There are 163 bacteria after 8 years

The given parameters are:

Initial (a) = 20

Rate (r) = 30%

So, the exponential function is:

[tex]y = a(1 + r)^x[/tex]

This gives

[tex]y = 20(1 + 30\%)^x[/tex]

After 8 years, we have:

[tex]y = 20(1 + 30\%)^8[/tex]

Evaluate

[tex]y = 163[/tex]

Hence, there are 163 bacteria after 8 years

Read more about exponential functions at:

https://brainly.com/question/11464095

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