Answer:
4
Step-by-step explanation:
The plus and minus sign cancel each other out so it becomes 7-3=4
Answer:
$143.00
Step-by-step explanation:
130+10%(13.00)=143.00
7 + 3.(2 - 3x) = 67
3 brackets are distributed
7+6-9x = 67
13-9x = 67
-9x = 67
x = 67/-9
Answer:
The system that can be used is:
![10x + 2y = 56](https://tex.z-dn.net/?f=10x%20%2B%202y%20%3D%2056)
![9x + 3y = 60](https://tex.z-dn.net/?f=9x%20%2B%203y%20%3D%2060)
Step-by-step explanation:
We have that:
x is the price of a package of sugar cookies, y is the price of a package of oatmeal cookies.
Shaikha sold 10 packages of sugar cookies and 2 packages of oatmeal cookies for $56.
This means that:
![10x + 2y = 56](https://tex.z-dn.net/?f=10x%20%2B%202y%20%3D%2056)
Khalid sold 9 packages of sugar cookies and 3 packages of oatmeal cookies for $60.
This means that ![9x + 3y = 60](https://tex.z-dn.net/?f=9x%20%2B%203y%20%3D%2060)
System that can be used:
The system that can be used is:
![10x + 2y = 56](https://tex.z-dn.net/?f=10x%20%2B%202y%20%3D%2056)
![9x + 3y = 60](https://tex.z-dn.net/?f=9x%20%2B%203y%20%3D%2060)