- #1
kee23
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Homework Statement
Given that y is directly proportional to the cube of x and inversly proportional to the square of z, if x decreases by 23.3% and z increases by 45.3%, by what factor does y change?
Homework Equations
Couldn't make a equation but I tried like this:
y=K/x^3+1/z^2
The Attempt at a Solution
I couldn't get the question and where to start adding variables into the equation.
I think the equation is wrong to me though. Someone help?
(am I in the right thread for this question?)
Also my English is sort of weak so please make statement simple as possible. :)