Really need help! Medal awarded

The count in a different culture of bacteria was 59 after 26 hours and 111 after 68 hours.

a. what is the relative rate of growth of the bacteria population (expressed as a percentage)?

b.what was the initial size of the culture?

Question

Really need help! Medal awarded 

The count in a different culture of bacteria was 59 after 26 hours and 111 after 68 hours.

a. what is the relative rate of growth of the bacteria population (expressed as a percentage)?

b.what was the initial size of the culture?

shiraz14 · Answer

Use the formula:
$$N=N _{o}(2^{n})$$(where n=number of doubling-lifes which have elapsed)

Can you now try to figure out the value for t, and hence the initial amount of bacteria in the culture?