Answer: the average color of the population would become paler.
Step-by-step explanation:
study island
Y=1/x
y=k/x
Where “k” is a constant
15/2=k/4
2k=60
k=60/2
k=30
:. 15/4=30/x
15x=120
x=120/15
:.x=8.
Answer:
Step-by-step explanation:
r > 30
Answer:
Hence the positive numbers are 246, and 41
(246, 41)
Step-by-step explanation:
From the question,
- One positive number is 6 times another number
Let the first positve number be ![x](https://tex.z-dn.net/?f=x)
and the other number be ![y](https://tex.z-dn.net/?f=y)
Hence,
....... (1)
Also,
- The difference between the two numbers is 205
That is,
........(2).
To solve for the two unknowns, substitute the value of
in equation (1) into equation (2).
Since,
Then
becomes
![(6y) - y =205\\](https://tex.z-dn.net/?f=%286y%29%20-%20y%20%3D205%5C%5C)
Then,
![6y - y = 205\\5y = 205\\](https://tex.z-dn.net/?f=6y%20-%20y%20%3D%20205%5C%5C5y%20%3D%20205%5C%5C)
Divide both sides by 5
![\frac{5y}{5} = \frac{205}{5} \\ y = 41\\](https://tex.z-dn.net/?f=%5Cfrac%7B5y%7D%7B5%7D%20%3D%20%5Cfrac%7B205%7D%7B5%7D%20%5C%5C%20y%20%3D%2041%5C%5C)
∴ the value of
is 41
Now, substitute the value of y into equation (1) to find ![x](https://tex.z-dn.net/?f=x)
Then,
becomes
![x = 6(41)\\x = 246\\](https://tex.z-dn.net/?f=x%20%3D%206%2841%29%5C%5Cx%20%3D%20246%5C%5C)
∴ the value of
is 246
Hence the positive numbers are 246, and 41
(246, 41)
Answer:
Use of recursion in an algorithm has both advantages and disadvantages. The main advantage is usually the simplicity of instructions. The main disadvantage is that the memory usage of recursive algorithms may grow very quickly, rendering them impractical for larger instances.