Xm = p + n......divide both sides by m
x = (p + n) / m OR x= p/m + n/m
Answer:slope is 4 and the y-intercept is 12
Step-by-step explanation: I hope this helps
Using a system of equations, it is found that:
- Each individual notebook costs $2.75.
- A package of pencils costs $1.25.
- Each individual marker costs $0.5.
<h3>What is a system of equations?</h3>
A system of equations is when two or more variables are related, and equations are built to find the values of each variable.
In this problem, the variables are:
- n is the price of a notebook.
- p is the price of a package of pencils.
- m is the price of marker.
From Stan's purchases, we have that:
![n + 3p + 2m = 7.5](https://tex.z-dn.net/?f=n%20%2B%203p%20%2B%202m%20%3D%207.5)
From Jan's purchases, we have that:
![2n + 6p + 5m = 15.50](https://tex.z-dn.net/?f=2n%20%2B%206p%20%2B%205m%20%3D%2015.50)
From Fran's purchases, we have that:
![n + 2p + 2m = 6.25](https://tex.z-dn.net/?f=n%20%2B%202p%20%2B%202m%20%3D%206.25)
From the third equation:
![n = 6.25 - 2p - 2m](https://tex.z-dn.net/?f=n%20%3D%206.25%20-%202p%20-%202m)
Replacing on the first:
![n + 3p + 2m = 7.5](https://tex.z-dn.net/?f=n%20%2B%203p%20%2B%202m%20%3D%207.5)
![6.25 - 2p - 2m + 3p + 2m = 7.5](https://tex.z-dn.net/?f=6.25%20-%202p%20-%202m%20%2B%203p%20%2B%202m%20%3D%207.5)
![p = 1.25](https://tex.z-dn.net/?f=p%20%3D%201.25)
On the second equation, we have that:
![2n + 6p + 5m = 15.50](https://tex.z-dn.net/?f=2n%20%2B%206p%20%2B%205m%20%3D%2015.50)
![2(6.25 - 2p - 2m) + 6(1.25) + 5m = 15.50](https://tex.z-dn.net/?f=2%286.25%20-%202p%20-%202m%29%20%2B%206%281.25%29%20%2B%205m%20%3D%2015.50)
![2(3.75 - 2m) + 5m = 8](https://tex.z-dn.net/?f=2%283.75%20-%202m%29%20%2B%205m%20%3D%208)
![m = 0.5](https://tex.z-dn.net/?f=m%20%3D%200.5)
Finally:
![n = 6.25 - 2(1.25) - 2(0.5) = 2.75](https://tex.z-dn.net/?f=n%20%3D%206.25%20-%202%281.25%29%20-%202%280.5%29%20%3D%202.75)
Then:
- Each individual notebook costs $2.75.
- A package of pencils costs $1.25.
- Each individual marker costs $0.5.
To learn more about system of equations, you can take a look at brainly.com/question/24342899
Answer:
the answer is c!
Step-by-step explanation:
Step-by-step explanation:
7y +7x +5 = > answer
hope this will be helpful to you.
plz mark my answer as brainlist plzzzz