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if y varies inversely as x and y = 25 when x = 3 find the x when y = 15​

Sagot :

Answer:

x = 10

Explanation: If  

y

varies inversely as  

x

then

XXX

x

y

=

c

for some constant  

c

We are told when  

x

=

2

then  

y

=

15

So

XXX

2

15

=

c

XXX

c

=

30

and

XXX

x

y

=

30

Therefore when  

y

=

3

XXX

x

3

=

30

XXX

x

=

10