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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An expression is defined as a set of numbers, variables, and mathematical operations. The value of the expression (√2)π/(√5) is 2.

<h3>What is an Expression?</h3>

In mathematics, an expression is defined as a set of numbers, variables, and mathematical operations formed according to rules dependent on the context.

The value of the expression (√2)π/(√5) can be written as,

$\dfrac{\sqrt2 \pi}{\sqrt5}\\\\= \sqrt{\dfrac25}\pi\\\\=\sqrt{0.4} \times \pi\\\\$