8.If `3x+4y:x+2y=9:4`,then `3x+5y:3x-y` is equal to

If x:y=4:5 , then (2x+3y): (8x-5y) is equal to :

If log_(5)(3^(x)-4^(y))=3 and 3^((x)/(2))-2^(y)=5, then (x)/(y) is equal to

If x : y = 7 : 5, then what is ( 5x-2y):(3x+2y) equal to ?

Let y = y (x) be the solution of the differential equation ( x - x ^(3)) dy = ( y + y x^(2) - 3x^(4)) dx , x gt 2 . If y (3) = 3 then y (4) is equal to :

If x=2,y=1 then x^(4)+2x^(3)y-2xy^(3)-y^(4) is equal to

The perimeter of a parallelogram whose sides are represented by the lines x+2y+3=0 , 3x+4y-5=0,2x+5=0 and 3x+4y-10=0 is equal to

If x:y=8:9, find the ratio (7x-4y):3x+2y