i need help with my math problem: x varies directly as the square of s and inversely as t. how does x change when s is doubled? when both x and t are doubled?

Answer 1

x = A s^2/t
A is a constant

If s doubles and t stays the same, x increases by a factor of 4.

In your last question, do you mean s and t are doubled, or x and t ?

In either case, use the formula.