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Pani-rosa [81]
3 years ago
5

PLEASE HELP!!!!!!! Atoms are blank if it has blank electrons in its outer most energy level.

Chemistry
1 answer:
laila [671]3 years ago
4 0
Atoms are (stable) if it has (valence) electrons in its outer most energy level.
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A rectangular fence is 3 times as long as it is wide. The perimeter is 60ft. Find the dimensions of the fence
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The length of the fence is 22.5ft and the width of the fence is 7.5ft.

Explanation:

To solve this problem we will turn this question into an equation.

The equation for the perimeter of a rectangle is 2l + 2w = perimeter.

In the question we were given the perimeter so we can go ahead and plug this in.

2l + 2w = 60

In the question we are also told that the fence is 3 times as long as it is wide. This means that 1l = 3w. We can now subsitute l for 3w so that we only have one variable.

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The length of the fence is 22.5ft and the width of the fence is 7.5ft.

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