When x = 64 and y = 3, we will have:
z = 3,313.21
How to find the value of z?
First, we know that z varies directly with x and inversely with y², then we can write:
z = k*x/y^2
Where k is a constant.
We know that z = 182 when x = 25 and y = 8, replacing that we can find the value of k.
182 = k*25/(8²)
k = 182*8²/25 = 465.92
Now, we just need to evaluate the function in x = 64 and y = 3.
z = (465.92)*64/3² = 3,313.21
If you want to learn more about variations:
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