Question

If xy = 1 and x=-4 1/5 then y =?

Answer 1

Answer:

y=-1/4...................

Answer 2

The value of y  is $- \frac{5}{21}$ .

Step-by-step explanation:

Given:

$xy=1$    and $x=4\frac{1}{5}$

To  Find:

The value of y .

Solution:

As given:$xy=1$    and $x= - 4\frac{1}{5}$

$xy=1$    ----------- equation no.01

$x= - 4\frac{1}{5}$

$x= - \frac{21}{5}$   ------------ equation no.02

Putting value of  x form  equation no.02 to equation no.01, we get.

$( -\frac{21}{5} ) y=1$

$y= - \frac{5}{21}$

Thus, the value of y is $- \frac{5}{21}$ .