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Question 167122: 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?: 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?
Answer by ankor@dixie-net.com(4660) About Me  (Show Source):
You can put this solution on YOUR website!
x varies directly as the square of s and inversely as t. H
x = s^2/t
:
How does x change when s is doubled?
x = (2s)^2/(t) = (4s^2)/(t); x increase 4 times
:
:
When both s and t are doubled?
x = (2s)^2/(2t) = (4s^2)/(2t) = (2s^2)/(t): We can say that x is doubled