SOLUTION: 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?

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: 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?      Log On


   

Question 117006This question is from textbook
: 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? This question is from textbook

Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
x varies directly as the square of s and inversely as t.
x = s%5E2%2Ft
:
How does x change when s is doubled?
Since s is squared, doubling s is the same as 2^2, hence 4 times
:
When both s and t are doubled?
t is in the denominator, therefore x = half as much, t is 4 times as much
therefore: .5 * 4 hence, 2 times