Answer:
Step-by-step explanation:
Given that the sum of x and y is greater than 0.
So we can write inequality .
When y is subtracted from x, the difference is less than or equal to 0.
So the next inequality is .
Hence required system of inequalities that can be used to solve for x and y is :
100% sure its A
I took the test
x=-1
4x-16=-20
Get x to one side by subtracting it.
-16=-20-4x
Add the 20 on both sides.
-16+20=-4x
Simplify
4=-4x
4/-4=-4x/-4
-1=x
425-65=360
360-65=295
Mrs Chan had at first 295 cookies