Determine the quantity indicated. z is jointly proportional to x and y and inversely proportional to the

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Determine the quantity indicated.


z is jointly proportional to x and y and inversely proportional to the square of r. If z = 12 when x = 20, y = 8, and r = 8, find z when x = 10, y = 80,and r = 3.

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Related Book For  answer-question

A Survey of Mathematics with Applications

ISBN: 978-0134112107

10th edition

Authors: Allen R. Angel, Christine D. Abbott, Dennis Runde

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