Answer:
the unit rate for it would be 1/4
Answer:
y=2x+1
Step-by-step explanation:
Parallel = gradients are the same
Example: y=2/4x+5
Perpendicular = gradients are the inverse of each other
Example: y= -4/2x+1
Any equation would be correct unless the gradient is 2/4 or -4/2
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)
-14b+28=-10b-30
-4b+28=-30
-4b=-58
b=58/4=29/2