Don't know whether or not you've encountered differential equations yet, but will try that approach here.
The growth rate is dy/dt = ky (which states that the rate is proportional to the size of the population, y, and k is a constant.
Grouping like terms,
dy
--- = kt, so y = Ne^kt
y
We are told that at t=0, there are 880 bacteria. Thus, 880=N. Therefore,
y = 880e^(kt). After 5 hours the pop will be 4400; using this info, find k:
4400=880e^(5k), or 5 = e^(5k). So, our y = 880e^(kt) becomes
y = 880e^(5t).
What will be the pop after 2 hours? y(2)=880e^(10) = 880(22026) =
approx. 19,383,290 bacteria
Time to reach a pop of 2550? 2550 = 880e^(5t). Find t.
ln 2550 = ln 880 + 5t, so ln 2550 - ln 880 = 5t. Divide both sides by 5 to obtain this time, t.
Since the sum of any two sides is greater than the third, hence the three sides for the sides of a triangle
<h3>What is a triangle?</h3>
A triangle is a 2-D shape with 3sides and angles. According to the question, we are to determine whether the given measures form sides of a triangle.
For the following measure to form the sides of a triangle, the sum of any two sides must be equal to the third as shown:
3 + 12 = 15 > 13
3 + 13 = 16 > 12
13 + 12 = 25 > 3
Since the sum of any two sides is greater than the third, hence the three sides for the sides of a triangle
Learn more triangle here: brainly.com/question/2217700
#SPJ1
Answer:
Step-by-step explanation:
Given
Required
Number of books in 1 week
Represent the number of books in 1 week with x.
So, we have:
Cross Multiply
Convert fraction to improper fraction
Multiply through by 
<em>Hence: 12/7 books were read in a week</em>
Answer:
x=280
Step-by-step explanation:
30-x/10=2
x/10=30-2
x/10=28
x=28*10
x=280
