5. If d varies inversely as the square off, and f= 3 when d -15, find the value of f when d = 24.

College Algebra
1st Edition
ISBN:9781938168383
Author:Jay Abramson
Publisher:Jay Abramson
Chapter5: Polynomial And Rational Functions
Section5.8: Modeling Using Variation
Problem 2TI: A quantity y varies inversely with the square of x. If y=8whenx=3 , find y when x is 4.
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5. If d varies inversely as the square off, and f= 3 when d -15, find the value of f
when d = 24.
6. If j varies inversely as 2b, and j = 12 when b-5, find the value of b when j = 30.
7. If y varies directly as x, and inversely as z, and y = 14 when x = 6 and z = 8, find x when
y=26 and z=15.
Transcribed Image Text:5. If d varies inversely as the square off, and f= 3 when d -15, find the value of f when d = 24. 6. If j varies inversely as 2b, and j = 12 when b-5, find the value of b when j = 30. 7. If y varies directly as x, and inversely as z, and y = 14 when x = 6 and z = 8, find x when y=26 and z=15.
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