How fast does the bacteria doubles and quadruples?

Question

A researcher is investigating a specimen of bacteria. She finds that the original 1000 bacteria grew to 2,048,000 in 60 hours. How fast does the bacteria (a) double? (b) quadruple?

Answer 1

2048000 = 1000e^60k

2048 = e^60k

ln 2048 = 60k

7.624618986 = 60k

0.127 ≈ k 

 

2000 = 1000e^0.127t

 

Can you take it from here?