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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?
Updated: 12/14/2022
Wiki User
∙ 13y agoBest Answer
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
∙ 13y agoThis answer is:
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bonifascio
Lvl 2
∙ 3y agoSuppose x varies directly as y and inversely as z. If x = 30 when y = 40 and z=80. , find when y and z = 40
This answer is:
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