Question

If y is inversely proportional x,when y=5 and X=15.
Find the constant of proportionality,and the value of X when X=9

Answer 1

Answer:

k = 75 and y = 8.34

Step-by-step explanation:

y∝1/x  or   y = k/x

when y=5, x=15

k= y × x = 5 × 15 = 75

Again, when x = 9

y = k/x = 75/9 = 8.34

Answer 2

HOLA MATE !!!

HOPE THIS HELPS YOU...

Answer:

We are provided with the data that,

x ∝ 1/y

then ,  x = k/y  ________________________is the formula to be used.

for k=proportionality constant.

Step-by-step explanation:

x = k/y

at x=15 and y=5

=> 15 = k/5

=> k = 75

So, the value of the proportionality constant ,k=3

now it is given that the value of y=9 ,then we have to find value of x

x = k/y

=> y= 75/9

=> y=25/3

=> y=8.334

THANK YOU FOR YOUR WONDERFUL QUESTION ...

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