Help Please !!1

A bacteria culture initially contains 20 cells and grows at a rate proportional to its size. After an hr the population has increased to 385. When will the population reach 20,000? Round ur answer

a. t = 2.34 hrs
b. t= 2.57 hrs
c. t= 2.10 hrs
d. t= 1.56 hrs
e. 2.88 hrs

Question

Help Please !!1

A bacteria culture initially contains 20 cells and grows at a rate proportional to its size. After an hr the population has increased to 385. When will the population reach 20,000?  Round ur answer 

a. t = 2.34 hrs
b. t= 2.57 hrs
c. t= 2.10 hrs
d. t= 1.56 hrs
e. 2.88 hrs

marcelie · Answer

@satellite73

anonymous · Answer

each hour it grows by a factor of $$\frac{385}{20}=\frac{77}{4}$$

anonymous · Answer

solve $$20\times \left(\frac{77}{4}\right)^t=20,000$$

marcelie · Answer

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