Question

lesson of ratio proportion,class 9​

Answer 1

Answer:

11/5

Step-by-step explanation:

    (3x+5y) = 11 (3x-5y)

or, 33x - 55y = 3x+5y

or,      30x     =    60y

or,         x       =     2y    

∴(2x²+3y²)/(2x²-3y²) = (2×4y²) +3y² / (2×4y²)- 3y²

                                 = (8y²+3y²) / (8y²-3y²)

                                 =    11/5