1 Answer

Joycelyn · Answer 1 · 2019-01-08T06:58:57+0000

For

and

to be inversely proportional, there must be some constant

such that

Given that
z=0.875

when

, it follows that

$0.875\cdot16=k\implies k=14$

Then when
x=21

, we have

$21z=14\implies z=(14)/(21)=\approx0.667$

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