Answer: 495 bacteria in 2 minutes.
Step-by-step explanation:
We would apply the formula,
y = ab^t
Where
a represents the initial amount of bacteria.
t represents the doubling time.
From the information given
a = 10
t = 15 seconds
Since after 15 seconds, the amount of bacteria multiplies by 2, then
y = 2 × 10 = 20
Therefore
20 = 10 × b^15
Dividing through by 10, it becomes
2 = b^15
Raising both sides of the equation by 1/15, it becomes
2^(1/15) = b^15/15
b = 1.047
The equation becomes
y = 10(1.047)^t
For t = 2 minutes(2 × 60 = 120 seconds), then
y = 10(1.047)^120
y = 495 bacteria
Answer:
Associative property
Step-by-step explanation:
<u>The given property is:</u>
A + (B + C) = (A + B) + C
which is called "associative property of addition".
Hence, this property is used in the given expression which is "rearranging the parenthesis does not affect the result."
![\rule[225]{225}{2}](https://tex.z-dn.net/?f=%5Crule%5B225%5D%7B225%7D%7B2%7D)
Hope this helped!
<h3>~AH1807</h3>
Answer:
<h3>y = ¾x - 3</h3>
Explanation:
−3x + 4y = −12
<em>Add 3x to both sides</em>
−3x + 4y + 3x = −12 + 3x
4y = 3x − 12
<em>Divide both sides by 4</em>
4y / 4 = 3x − 12 / 4
<em>Simplify</em>
Answer:ccccy/x =kccccy
Step-by-step explanation:
