Answer:
The truck is worth $5,135 when 9 years have passed
Step-by-step explanation:
Initial value of Alex's new truck: $42,935
Loss of value per year: $4,200
If n years passed, the truck would have lost
![4,200n\ dollars](https://tex.z-dn.net/?f=4%2C200n%5C%20dollars)
The current value of the truck will be
![V(n)=42,935-4,200n](https://tex.z-dn.net/?f=V%28n%29%3D42%2C935-4%2C200n)
We want to know the value of n at which V is 5,135
![5,135=42,935-4,200n](https://tex.z-dn.net/?f=5%2C135%3D42%2C935-4%2C200n)
Solving for n
![n=\frac{42,935-5,135}{4,200}](https://tex.z-dn.net/?f=n%3D%5Cfrac%7B42%2C935-5%2C135%7D%7B4%2C200%7D)
n=9 years
Answer:
x is 3
Step-by-step explanation:
13-7=6
6÷2=3
your welcome