Answer:
![4n = 24](https://tex.z-dn.net/?f=4n%20%3D%2024)
Step-by-step explanation:
Given
![Cars = 4](https://tex.z-dn.net/?f=Cars%20%3D%204)
![Empty = 3](https://tex.z-dn.net/?f=Empty%20%3D%203)
![Occupied = 21](https://tex.z-dn.net/?f=Occupied%20%3D%2021)
Required
Determine an equation to find number of seats
Let the number of seats in each car be represented by n;
If ![1\ car = n](https://tex.z-dn.net/?f=1%5C%20car%20%3D%20n)
Then:
![4\ cars = 4 * n](https://tex.z-dn.net/?f=4%5C%20cars%20%3D%204%20%2A%20n)
![4\ cars = 4 n](https://tex.z-dn.net/?f=4%5C%20cars%20%3D%204%20n)
This implies that there are 4n total seats
Solving further:
![Occupied\ Seats + Empty\ Seats = Total](https://tex.z-dn.net/?f=Occupied%5C%20Seats%20%2B%20Empty%5C%20Seats%20%3D%20Total)
Substitute values for the above parameters:
![21 + 3 = 4n](https://tex.z-dn.net/?f=21%20%2B%203%20%3D%204n)
![24 = 4n](https://tex.z-dn.net/?f=24%20%3D%204n)
Reorder
---- This equation can be used to solve for n
Step-by-step explanation:
not sureeee if it is the right answer