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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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3 years ago
Am I correct? It's important that I get the right answer, so if I'm wrong please tell me what I did wrong
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Since n=5, take the 6th row of Pascal Triangle: (a+b)⁵:

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6 0
3 years ago
A leak in a water tank causes The water level to decreased by 3.6 x 10^-2 millimeters each second.
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7 0
4 years ago
Read 2 more answers
Please Answer Attachment Below Thanks
docker41 [41]

Answer:

Step-by-step explanation:

The interior angles of a heptagon add up to 5*180 = 900

So

x + 143 + 116 + 135 + 135 + 116 + 155 = 900     Add up the known angles

x + 800 = 900                                                   Subtract 800 from both sides

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8 0
4 years ago
Four movie tickets cost $26.00 . How much do seven movie tickets cost?
sashaice [31]

Answer:

Hi! I suggest reading the explanation, it will help make this equation more simple.

↓↓↓

The answer is $45.50

Step-by-step explanation:

First, divide 26.00 by four. This will give you 6.5, so now you know that each ticket individually costs $6.5 or $6.50.

next, multiple 6.50 by 7.

this will give you 45.5 or $45.50.

double check your answer by dividing 45.50 by 7.

your answer should be 6.5 on a calculator.

that's all! hope this helped.

7 0
2 years ago
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