Answer:
59 bacteria would there be after 4 hours.
Step-by-step explanation:
Given:
Bacteria in the petri dish = 40
Time taken for the bacteria to be doubled =17 hours
To Find:
To Find the number bacteria left after 4 hours = ?
Solution:
By using the proportionality,
After 17 hours the number of bacteria will be 80.
Let the number of bacteria after 4 hours be x
then

Now by cross multiplication



x= 18. 82
So the number of bacteria after 4 hours will be
= 40 + 18.82
= 58.82
=59
Answer:
The percent gain would be 77952515`0%
Answer:
6
Step-by-step explanation:
w/w+6 = 1/2
2w = w+6
w=6
any of the 34 cars can finish first
any of the remaining 33 cars can finish second
any of the remaining 32 cars can finish third
Thus, the top 3 finishes can be done in (34)(33)(32) = 35904 ways