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Katyanochek1 [597]
3 years ago
6

What is the answer to this problem. -9 - (-9)=?

Mathematics
2 answers:
iVinArrow [24]3 years ago
8 0
Two negative = one positive

-9 - (-9) = -9 + 9 = 0

your answer is 0

hope this helps
DiKsa [7]3 years ago
3 0
When subtracting with a negative, your basically adding.

So then -9+9=0 (because y'know, you're subtracting a negative.


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Answer:

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Step-by-step explanation:

<em>Jose is creating a map in the shape of a rectangle whose length is 4 inches longer than its width. Let w stand for the width of the map in inches. Write an equation gives the perimeter of the map in terms of w?</em>

Perimeter of the rectangle = 2(L +w)

L is the length of the rectangle

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If the length is 4 inches longer than its width, then;

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Substitute into the expression;

P = 2 (L+w)

P = 2(w+4+w)

P = 2 (2w+4)

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