Growth and decay

Question

a super deadly strain of bacteria is causing the zombie population to double every 2 days. Currently there are 25 zombies. After how many days will there be 25,600 zombies?

using the same function as above. If the current population of our planet is 5,000,000 people. after how many days will there be no human left

Answer 1

Z = 25(2)^d/2

25600 = 25(2)^d/2

1024 = (2)^d/2

2¹⁰ = 2^d/2

10 = d/2

 

Use the same process to determine the answer to the second question.