Answer:
Given:
x-y=-4
2x+y=4
Step-by-step explanation:
x-y=-4
2x+y=4
add both the equation, we get
⇒ x-y=-4
2x+y=4
⇒3x=-4+4
⇒3x=0
⇒x=0
∴ to find the value of y, put the value of x in any one equation
⇒x-y=-4
⇒0-y=-4
⇒-y=-4
⇒y=4
∴ x=0, y=4
The value of X is 11 because if you reduce the numbers with greatest common factors twice, then commutative property to record the terms, and calculate to get 11x
X does not equal one but there is 1x in the problem so it is 1.
So.. to complete the square you always take 1/2 of that number.
so
half of 1 is 1/2.
Then you square that number 1/2 * 1/2 = 1/4
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So they can sell 500 footballs or less, but not more. I'll use (x) for how many can be sold. x <span>≤ 500</span>