Question

if 9x=20y then the value of ((x/y)-1)) is​

Answer 1

Step-by-step explanation:

9x=20 y

x=20 y/9

put this value in the eqn

20 y / 9 y-l

20/9-1

20-9/9

11/9

Answer 2

We need to recall the following rules.

• $\frac{a}{b}+c= \frac{a+bc}{b}$
• $\frac{a}{b}-c= \frac{a-bc}{b}$

Given:

$9x=20y$

From the given equation, we get

$x=\frac{20}{9} y$

Now,

$((\frac{x}{y}) -1)$

$=((\frac{\frac{20}{9}y }{y})-1)$

$=\frac{20}{9}-1$

$=\frac{20-9}{9}$

$=\frac{11}{9}$