Question

If y varies inversely as x and y = 5 when x = 2, find x when y is 4.

Answer 1

\[\large y = \frac{k}{x}\] \[5 = \frac{k}{2}\] \[k = 10\] can you do the rest?

Answer 2

x=5

Answer 3

you got it

Answer 4

Thanks
:D

Answer 5

oops wait no... it's \[4 = \frac{10}{x}\] \[x = \frac{10}{4}\] sorry

Answer 6

so x = 2.5???

Answer 7

2.5 or 5/2