Question

(3x+ 5y): (7x + 4y)= 7:4
xiy
ratio
find​

Answer 1

Answer:

$\frac{3x+5y}{7x+4y} = \frac{7}{4}$

4 ( 3x + 5y ) = 7 ( 7x + 4y )         [ by cross multiplication ]

12x + 20 y = 49 x + 28 y

12x - 49 x = 28 y - 20 y

-37x = 8y

Therefore, ratio = -37/8 = -37 : 8