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earnstyle [38]
3 years ago
6

Plz help Topic: Simultaneous equationsClass 9 ICSE​

Mathematics
1 answer:
dimaraw [331]3 years ago
8 0

Answer:

19 and 13

Step-by-step explanation:

Let x be the larger number and y the smaller , then

\frac{3x}{y} = 4 + \frac{5}{y} ( multiply through by y to clear the fractions )

3x = 4y + 5 ( subtract 4y from both sides )

3x - 4y = 5 → (1)

and

\frac{6y}{x} = 4 + \frac{2}{x} ( multiply through by x to clear the fractions )

6y = 4x + 2 ( subtract 4x from both sides )

- 4x + 6y = 2 → (2)

Multiplying (1) by 4 and (2) by 3 and adding will eliminate x

12x - 16y = 20 → (3)

- 12x + 18y = 6 → (4)

Add (3) and (4) term by term to eliminate x

0 + 2y = 26

2y = 26 ( divide both sides by 2 )

y = 13

Substitute y = 13 into (1) and solve for x

3x - 4(13) = 5

3x - 52 = 5 ( add 52 to both sides )

3x = 57 ( divide both sides by 3 )

x = 19

The 2 numbers are 19 and 13

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Step-by-step explanation:

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6 0
3 years ago
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Effectus [21]

Answer:

A

Step-by-step explanation:

Sabendo que 119 268 916 é divisível por 13, o número 119 268 903 também é divisível por 13.

Isso ocorre porque a diferença entre um múltiplo de um número e o próximo múltiplo de um número é esse próprio número.

Portanto, para encontrar outros múltiplos que são divisíveis por 13 dado o resultado na pergunta, podemos adicionar múltiplos menores de 13 ou subtrair múltiplos menores de 13 do número.

O que estamos dizendo é que o número - 13 ou mesmo -26 ou +39 daria outro múltiplo de 13. O que estamos dizendo é que chegaremos a um número que é divisível por 13 do outro número dado que o número que estamos adicionando ou subtrair do número é um múltiplo de 13.

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3 years ago
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aleksandr82 [10.1K]

Answer with explanation:

→A polygon is a simple closed curve. So , a closed curve occupies area.

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Therefore, Here "Sometimes" word is used.

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