Question

if Y varies inversely as X , when Y=4 and X=15 .?

Answer 1

what's the rest of the question?

Answer 2

none. thats only.

Answer 3

If y varies inversely with x that means as y increases, then x decreases. I.e., y = k/x for some constant k. If you can determine this constant of proportionality, k, then you have the expression you seek. You are given y = 4 when x = 15. 4 = k/15. Solve for k.

Answer 4

60

Answer 5

k=60 ?

Answer 6

Right. So now that you know k = 60, what would the general equation become?

Answer 7

i always solve for k ?

Answer 8

Pretty much.

Answer 9

how to solve for k ? multiply the Y and X?

Answer 10

thanks :)