College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter2: Functions And Graphs
Section2.6: Proportion And Variation
Problem 21E: Find the constant of proportionality. E varies jointly with I and R. If R=25 and I=5, then E=125.
Related questions
Question
![Find a mathematical model representing the statement. (Determine the constant of proportionality.)
z varies jointly as x and y. (z = 128 when x = 4 and y = 8.)
%3D
z = 4xy
4x
z =
y
xy
O z=
4
4y
z =
z =
xy](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fcba5c243-d3c4-478f-8b27-e10a19198737%2F8b920e9d-3987-41ea-960e-0c96e0d97a69%2Fy7rg8_processed.png&w=3840&q=75)
Transcribed Image Text:Find a mathematical model representing the statement. (Determine the constant of proportionality.)
z varies jointly as x and y. (z = 128 when x = 4 and y = 8.)
%3D
z = 4xy
4x
z =
y
xy
O z=
4
4y
z =
z =
xy
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