10x+10y=1
x=y-3
10(y-3)+10y=1
10y-30+10y=1
20y=31
y=31/20
Answer:
18
Step-by-step explanation:
You can think of the absolute value as the distance from 0.
10 and -10 are both 10 units away from 0.
Given:
The growth of a sample of bacteria can be modeled by the function
where, b is the number of bacteria and t is time in hours.
To find:
The number of total bacteria after 3 hours.
Solution:
We have,
where, b is the number of bacteria and t is time in hours.
Substituting t=3, we get the number of total bacteria after 3 hours.
Number of bacteria cannot be decimal value. So, approximate the value to the nearest whole number.
Therefore, the number of total bacteria after 3 hours is about 3003.