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X varies directly with y and inversely with z x equals 20 when y equals 8 and z equals 4 Find x when y equals 4 and z equals 8?

Anonymous

∙ 14y ago

Updated: 12/14/2022

The answer is x=10.

If:

x=20

y=8

z=4

then:

y=8/2=4

z=4*2=8

since x varies directly with y, meaning whatever happens to y, happens to x, so if y was divided by 2, then x should be divided by 2. After all, the inverse of division is multiplication.

Wiki User

∙ 14y ago

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