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sergij07 [2.7K]
3 years ago
8

there are 16 bactiria in a beaker and four hours later there are 228 bacteria in the beaker. what is the rate of change per hour

in the number of bactiria
Mathematics
2 answers:
Dominik [7]3 years ago
8 0

Write and solve the appropriate exponential equation:

228 = 16(r)^4, where r is the change per hour in the number of bacteria:

228

------ = r^4     =   14.25.  

 16

Taking the fourth root of both sides, we get:  r = 1.94 (answer)

Sav [38]3 years ago
8 0

Initial number of bacteria = 16

Final number of bacteria after 4 hours = 228

So, bacteria increased by = 228-16=212

So per hour the bacteria increased by = \frac{212}{4} = 53

Hence, the bacteria increased by 53 per hour.

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