SOLUTION: Having problems figuring this one out. x varies directly as the square of s and inversely as t. How does x change when s is doubled? When both s and t are doubled. Thanks.

Question 171704: Having problems figuring this one out. x varies directly as the square of s and inversely as t. How does x change when s is doubled? When both s and t are doubled. Thanks.
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
You can use what are called constants of variation
(1) ( is the constant)
(2) ( is the constant)
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What if is doubled?

Compare this with (1). has been quadrupled
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What if is doubled also?

Compare this with (2) has been halved
If you do both, the net result is

So, x is doubled
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