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Bezzdna [24]
2 years ago
15

The length of a rectangle is 5 cm less than twice the width. The perimeter of the rectangle is 80 cm. Find the dimensions

Mathematics
1 answer:
balandron [24]2 years ago
6 0

Answer:

W=16 2/3

L=28 1/3

Step-by-step explanation:

L=2W-5

80=2W+2L

80=2W+2(2W-5)

80=2W+4W-20

80=6W-20

100=6W

W=16 2/3

L=2(16 2/3)-5

L=33 1/3 -5

L=28 1/3

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Step-by-step explanation:

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Hence option D is correct.

Alternatively

we see that

sin 0 = 0

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sin 135 = 1/\sqrt{2}

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3 years ago
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Answer:

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Expert Answer

Step-by-step explanation:

6 0
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melisa1 [442]

Answer:

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Step-by-step explanation:

Given:

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y=2x\\\\x+y=-6

In order to solve this system of linear equations, we use substitution method.

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