Question

if y varies inversely with x, and if y= 10 when x= 1.2, then what is the value of x when y=30 ?
A) 0.4
B) 0.6
C) 0.8
D) 10
E) 12
Can u guys explain please :D

Answer 1

do you know what inversley varying means?

Answer 2

y=k/x
10=k/1.2
k=12

30=12/x
x=12/30 = 0.4

Answer 3

it is when y=k/x where k is a constant..

Answer 4

oh!!! lana has done the job!! thanks lana!

Answer 5

thank you guy :DDD