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varies jointly as b and c, and a=28 when b=7 and c=6. Find a when b=-2 and c=6.

varies jointly as b and c, and a=28 when b=7 and c=6. Find a when b=-2 and c=6.

Elementary Algebra
Elementary Algebra
17th Edition
ISBN:9780998625713
Author:Lynn Marecek, MaryAnne Anthony-Smith
Publisher:Lynn Marecek, MaryAnne Anthony-Smith
Chapter8: Rational Expressions And Equations
Section8.9: Use Direct And Inverse Variation
Problem 499E: If p varies directly as q and p=10 , when q=2 . find the equation that relates p and q.
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If a varies jointly as b and c, and a=28 when b=7 and c=6. Find a when b=-2 and c=6.
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