The population of the bacteria after 7 hours is 230 bacteria.
An exponential function is given by:
y = abˣ
where y, x are variables, a is the initial value of y and b is the multiplier.
Let y represent the population of bacteria after x hours.
Given that he starts his experiment with 200 bacteria, hence
a = 200
The bacteria grow at a rate of 2% per hour, hence:
b = 100% + 2% = 1.02
The exponential equation becomes:
y = 200(1.02)ˣ
After 7 hours:
y = 200(1.02)⁷ = 230
The population of the bacteria after 7 hours is 230 bacteria.
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5
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15 would be in simplest form
Answer:
€135/12
Step-by-step explanation:
0.8×x=27
x=27÷0.8
=270/8
=135/4
135/4÷3=135/12
Y+60=180 then y=120
5z-100=60 then 5z=160 then z=32
Answer:
D: x = 1/2
Step-by-step explanation:
D is correct. The solution here is the solution of -6x + 3 = 0, which is x = 1/2.
