Question

If x and y varies inversely as each other and x=10 when y=6 findy when x=15​

Answer 1

Y = 4

Explanation:

given x varies inversely as y then the equation relating them is

y =
`(k)/(x)` ← k is the constant of variation

to find k use the condition x = 10 when y = 6 , then

6 =
`(k)/(10)` ( multiply both sides by 10 )

60 = k

y =
`(60)/(x)` ← equation of variation

when x = 15 , then

y =
`(60)/(15)` = 4