Question

please solve.........​

Answer 1

Step-by-step explanation:

(3/5)^-4*(15/10)^-4=(x/y)^-⁴

(5/3)⁴*(10/15)⁴=(y/x)⁴

(5/3*10/15)⁴=(y/x)⁴

(50/45)⁴=(y/x)⁴

(10/9)⁴=(y/x)⁴

10/9=y/x (using laws of exponent)

x/y=9/10

Hope this helps you

Answer 2

$(3/5)^{-4} * (15/10)^{-4} = (x/y)^{-4}\\ \\(5/3)^{4} * (10/15)^{4} = (y/x)^{4} \\\\(5*5*5*5/3^{4} ) * (10^{4} /15*15*15*15) = (y/x)^{4}\\\\10^{4}/3^{4}*3^{4} = (y/x)^{4} \\10^{4}/3^{8} = (y/x)^{4}\\(10/3^{2})^{4} = (y/x)^{4}\\\\10/9 = y/x\\\\x/y = 9/10$HOPE IT HELPS!