Question

If y varies inversely with x
and y is 10 when x is 5,
then what is y when x is 2?

Answer 1

9514 1404 393

Answer:

25

Explanation:

Inverse variation means ...

y = k/x

For the given values, we can find k to be ...

k = xy = (5)(10) = 50

Then for x=2, we have ...

y = 50/x

y = 50/2

y = 25 . . . when x=2