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Inga [223]
3 years ago
13

The length of a rectangle is twice the width. The perimeter is 25. The system to help find the length and width is:

Mathematics
2 answers:
svet-max [94.6K]3 years ago
8 0

9514 1404 393

Answer:

  (L, W) ≈ (8.33, 4.17)

Step-by-step explanation:

Substituting for L, we have ...

  2(2W) +2W = 25

  6W = 25

  W = 25/6 ≈ 4.17

  L = 25/3 ≈ 8.33

The rounded "exact" solution is ...

  (L, W) = (8.33, 4.17)

user100 [1]3 years ago
5 0
Let the width be x
Since the question mentions the length is twice the width,
let the length be 2x
The total perimeter given is 25cm and as we know, perimeter for a rectangle :
=> P = 2(Length + width)
So,

25cm = 2(2x + x)
25 = 4x + 2x
25 = 6x
25/6 = x
4.166666667 = x
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