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

If x: y = 4:7, find 2x + 5y: 3x + 4y.

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

If x :\ y=3:5 , find the ratio 3x+4y :8x+5y .

If y= 3x+c is a tangent to the circle x^2+y^2-2x-4y-5=0 , then c is equal to :

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

If (3x -4y) : (2x -3y) = (5x -6y) : (4x -5y) , find : x : y .

If 9x^2+25 y^2=181 and x y=-6, find the value of 3x+5y

If x=2 and y=5 find the values of : 3x-4y

If the lines y" "=" "3x" "+" "1 and 2y" "=" "x" "+" "3 are equally inclined to the line y" "=" "m x" "+" "4 , find the value of m.