Question

Y varies inversely with x. If y = 21 when x = 22, find x when y = 23

Answer 1

y = k/x

we have 'y' and we have 'x' so we can solve for 'k'

21 = k/22

22 * 21 = 462

Now that we have 'k' we can solve for x in the other equation

y = k/x

23 = 462/x

x = 462 / 23

x = ...

Answer 2

If y varies with x inversely
=> that x*y is a constant quantity ( That means x1*y1=x2*y2=x3*y3 ... and so-on)
here x1=22,y1=21y2=23 then u have to find x2

use x1*y1=x2*y2
Put the values u will get the Ans

Answer 3

is the answer 20.1

Answer 4

Yes

Answer 5

Thank you!