The variable z is inversely proportional to x. When x is 16, z has the

The variable z is inversely proportional to x. When x is 16, z has the value 0.875. What is the value of z when x= 21?

2 months ago

Solution 1

Guest Guest #2555
2 months ago
For z and x to be inversely proportional, there must be some constant k such that


Given that z=0.875 when x=16, it follows that

0.875\cdot16=k\implies k=14

Then when x=21, we have

21z=14\implies z=\dfrac{14}{21}=\approx0.667

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Step-by-step explanation:

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