## 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 numb

Question

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## Answers ( No )

Initial number of bacteria = 16

Final number of bacteria after 4 hours = 228

So, bacteria increased by =

So per hour the bacteria increased by = = 53

Hence, the bacteria increased by 53 per hour.

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)