Answer:
a. K3080
Step-by-step explanation:
K2000×10/100=K200
K80×36months=2880
K2880+K200=K3080
I assume we are solving for x see attachment.
Answer:
Step-by-step explanation:
To solve this problem, we need to multiple
and -2 by
and add the results together:
![x(x^{2} + 2x + 4)](https://tex.z-dn.net/?f=x%28x%5E%7B2%7D%20%2B%202x%20%2B%204%29)
![x^{3} + 2x^{2} + 4x](https://tex.z-dn.net/?f=x%5E%7B3%7D%20%2B%202x%5E%7B2%7D%20%2B%204x)
![-2(x^{2} + 2x + 4)](https://tex.z-dn.net/?f=-2%28x%5E%7B2%7D%20%2B%202x%20%2B%204%29)
![-2x^{2} - 4x - 8](https://tex.z-dn.net/?f=-2x%5E%7B2%7D%20-%204x%20-%208)
Adding the two together give the following:
![(x^{3} + 2x^{2} + 4x) + (-2x^{2} - 4x - 8)](https://tex.z-dn.net/?f=%28x%5E%7B3%7D%20%2B%202x%5E%7B2%7D%20%2B%204x%29%20%2B%20%28-2x%5E%7B2%7D%20-%204x%20-%208%29)
![x^{3} - 8](https://tex.z-dn.net/?f=x%5E%7B3%7D%20-%208)
7n^2 + 5 = 453
Subtract 5 from both sides:
7n^2 = 448
Divide both sides by 7:
N^2 = 64
Take the square root of both sides:
N = 8
11.9 gallons. Hope I helped!