Question

Vā rog ajutor :(
Urgent ​

Answer 1

Salut! =)

$\frac{3x+y}{x+2y} = \frac{4}{5}$

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$\frac{x}{y} =?$

5 ( 3x + y ) = 4 ( x + 2y )

15x + 5y = 4x + 8y

15x - 4x = 8y - 5y

11x = 3y => x = $\frac{3y}{11}$

$\frac{\frac{3y}{11} }{y} = \frac{3y}{11 } * \frac{1}{y} = \frac{3y}{11y} = \frac{3}{11}$

Bafta! =)