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

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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

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    0
    2021-09-10T21:43:41+00:00

    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.

    0
    2021-09-10T21:43:44+00:00

    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)

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