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fiasKO [112]
3 years ago
13

Help!!! Please Answer

Mathematics
1 answer:
adell [148]3 years ago
6 0

Answer:

d sorry if I'm wrong...

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O comprimento de um retângulo é 6x e sua largura é 5y. A) Escreva uma expressão algébrica que representa o perímetro desse retân
Kobotan [32]

Answer:

A) 12x + 10y

B) 118cm

Step-by-step explanation:

A) A fórmula para calcular o perímetro de um retângulo é dada como:

Perímetro de um retângulo = 2 (L + W)

= 2L + 2W

Onde

L = comprimento do retângulo

W = largura do retângulo

A) A pergunta nos diz que:

O comprimento de um retângulo é 6x e sua largura é 5y.

A expressão algébrica que representa o perímetro do retângulo =

Perímetro de um retângulo = 2 (L + W)

= 2L + 2W

L = 6x, W = 5y

= 2 (6x) + 2 (5y)

= 12x + 10y

A expressão algébrica que representa o perímetro do retângulo é

P = 12x + 10y

B) Se x = 4 cm e y = 7 cm, qual é o valor numérico desse perímetro.

P = 12x + 10y

x = 4cm

y = 7cm

Perímetro = 12 (4) + 10 (7)

Perímetro = 48cm + 70cm

Perímetro do retângulo = 118cm

Portanto, o valor numérico do perímetro é 118cm

7 0
3 years ago
SOMEONE PLEASE HELP WILL MARK BRAINLIEST
Mashutka [201]

Radical form for 112 would be 4{7 and then I think you can just search up how to reduce the 4 to 7 i don’t have the symbol btw
4 0
3 years ago
A university employs a total of 560 teaching assistants and research assistants. There are three times as many teaching
Scrat [10]

Answer:

170

Step-by-step explanation:

There are three times as many teaching assistants as research assistants. Find the number of research assistants employed by the university. Hence the number of research assistants is 170.

8 0
2 years ago
Hey! Solving linear equations with integers! i don’t think it should be that hard since it’s practice, I just need some help wit
Dmitriy789 [7]

<u>Solution</u><u> </u><u>1</u><u> </u><u>:</u><u>-</u>

>> -3 (3 - x) = 2x + 5

>> -3 × (3 - x) = 2x + 5

>> -9 + 3x = 2x + 5

>> 3x - 2x = 9 + 5

>> x = 14

<u>Solution</u><u> </u><u>2</u><u> </u><u>:</u><u>-</u>

>> -6 - 9p = 3p

>> -9p - 3p = 6

>> -12p = 6

>> p = -1/2

<u>Solution</u><u> </u><u>3</u><u> </u><u>:</u><u>-</u>

>> -5 (-4 - a) = 3a + 8

>> -5 × (-4 - a) = 3a + 8

>> 20 + 5a = 3a + 8

>> 5a - 3a = 8 - 20

>> 2a = -12

>> a = -12 / 2

>> a = -6

<u>Solution</u><u> </u><u>4</u><u> </u><u>:</u><u>-</u>

>> s - 6 = -5s

>> s + 5s = 6

>> 6s = 6

>> s = 6 / 6

>> s = 1

8 0
2 years ago
Read 2 more answers
The perimeter of a rectangle is 30 inches. If it’s length is 3 times its width, find the dimensions
Molodets [167]
2(3x +x)=30
8x = 30
x =3.75 = width
3x = 11.25 = length

8 0
3 years ago
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