Question

If x and y vary inversely and y = 63 the value of x when constant of variation=9is

Answer 1

Answer:

Hi ,  

definition :  

INVERSE PROPORTION :

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Two quantities x and y are said to vary in inverse proportion if  

xy = k  -----------( 1 )  

where k is a constant.  

according to our problem  

y = 45 ,

k = 9 .

put these values in ( 1 ),

xy = k

x × 45 = 9

x = 9 / 45

x = 1/5

if y = 45 then x = 1/5

Answer 2

Answer:

X = 63/9 =7

Step-by-step explanation: