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Andreyy89
3 years ago
6

I NEED HELP LIKE ASAP ​

Mathematics
1 answer:
steposvetlana [31]3 years ago
7 0

Answer:

the answer would be a

Step-by-step explanation:

if i am right can i please have the brainelest

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Hem dibuixat tres rectangles. En el primer, la llargada mesura 3 cm més que l'amplada. El segon i tercer rectangle tenen unes di
quester [9]

Resposta:

Primer rectangle:

Amplada = 11

Longitud = 14

Segon rectangle:

Amplada = 12

Longitud = 15

Tercer rectangle:

Amplada = 13

Longitud = 16

Explicació pas a pas:

Donat que:

Primer rectangle:

Amplada = x

Longitud = x + 3

2n rectangle:

Augment de la dimensió d'1 cm respecte al primer rectangle;

Amplada = x + 1

Longitud = x + 4

3r rectangle:

Augment de la dimensió de 2 cm respecte al primer rectangle;

Amplada = x + 2

Longitud = x + 5

Suma dels tres perímetres del rectangle:

Perímetre d'un rectangle: 2 (l + O)

Primer rectangle:

2 (x + x + 3) = 2 (2x + 3) = 4x + 6

2n:

2 (x + 1 + x + 4) = 2 (2x + 5) = 4x + 10

3r:

2 (x + 2 + x + 5) = 2 (2x + 7) = 4x + 14

Suma de perímetres = 162

(4x + 6 + 4x + 10 + 4x + 14) = 162

12x + 30 = 162

12x = 162 - 30

12x = 130

x = 11

Per tant,

Primer rectangle:

Amplada = 11

Longitud = 11 + 3 = 14

2n rectangle:

Amplada = 11 + 1 = 12

Longitud = 11 + 4 = 15

3r rectangle:

Amplada = 11 + 2 = 13

Longitud = 11 + 5 = 16

8 0
3 years ago
Read through the solution below. Then, answer
serg [7]

Answer:

the answer is e=mc^2 I think

6 0
2 years ago
6(14+x)=108, umm please help
My name is Ann [436]

Answer:

X = 4

I hope this helps

if you could, feel free to mark me Brainliest it would be much appreciated :D

4 0
3 years ago
Find the measurement of either the leg or the hypotenuse: A = B = 21 C =<br> 35
Varvara68 [4.7K]

Answer: x = 40.81 or 41

Step-by-step explanation:

A = B = 21

C = 35

Hypotenuse = x

Calculating Hypotenuse:

21^2 + 35^2 = x^2

=> 441 + 1225 = x^2

=> x^2 = 1666

=> x = 40.81 or 41

5 0
3 years ago
Joe's mom gave him $40 for cutting their grass. He used the money to but a $10.75 game and two snacks that cost $3.25 each. Joe
Reptile [31]
B! please vote me brainliest if i helped :) ❤️
8 0
3 years ago
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