Answer:
first setup your problem. it should look like this :
The solution of the given equation is (3,6). The correct option is B.(3,6)
<h3>Given equations,</h3>
![y=x+3.......(1)\\4x+y=18.....(2)](https://tex.z-dn.net/?f=y%3Dx%2B3.......%281%29%5C%5C4x%2By%3D18.....%282%29)
<h3>How to solve the equations?</h3>
putting the value of y from equation (1) in equation (2) , we get
![4x+x+3=18\\](https://tex.z-dn.net/?f=4x%2Bx%2B3%3D18%5C%5C)
![5x=18-3\\5x=15\\x=3](https://tex.z-dn.net/?f=5x%3D18-3%5C%5C5x%3D15%5C%5Cx%3D3)
substitute the value of x=3 in equation (1) we get,
![y=3+3\\y=6](https://tex.z-dn.net/?f=y%3D3%2B3%5C%5Cy%3D6)
Hence, the solution of given equation is (3,6).
So, the correct option is B.
For more details about the system of equations, follow the link:
brainly.com/question/12895249
Price per box, P = $1.45 .
Money left, M = $1247 - $472.70 = $774.3 .
Let, number of boxes are x.
So,
![x = \dfrac{774.3}{1.45}\\\\x = 534\ boxes](https://tex.z-dn.net/?f=x%20%3D%20%5Cdfrac%7B774.3%7D%7B1.45%7D%5C%5C%5C%5Cx%20%3D%20534%5C%20boxes)
Therefore, they have to sell 534 more boxes.
Hence, this is the required solution.
Answer:
C
Step-by-step explanation: