Variation Variety
Algebra
Level
2
x varies directly with y, and inversely with
. When y = 2 and
z = 3, x equals 8. What does x equal when y = 5 and z = 6?
The answer is 5.
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1 solution
We can write x = ky/z^2, then we can find k= 36, So x=36y/z^2, When y=5, and z=6, then x=5