The answer would be
7/11=0.6363636364
Answer:
19 days
Step-by-step explanation:
Given
--- initial
-- rate
Required
Days when the fish gets to 30
The function is exponential and as such it follows;

Where x represents the number of days and y the number of fishes
Because the fishes decreases;

So, we have:

Express as decimal


In 



So, we have:

Divide both sides by 150

Take log of both sides

Apply law of logarithm

Make x the subject




<em>Hence, it takes approximately 19 days</em>
Answer:
30
Step-by-step explanation:
The solution would be like this for this specific problem:


The correct sequence of operations when solving
negative one over five (x − 25) = 7 would be multiply each side by −5, and adding
25 to each side.
If you know the formular a^3+b^3=(a+b)(a^2-ab+b^2), you can solve this problem.
8 is 2 cubed, so x^3+2^3=(x+2)(x^2-2x+4)
so the other quadratic factor is x^2-2x+4