The elongation E of a spring balance varies directly with the applied weight W (see the figure). If E=5 when W=20, find E when W= 15.

Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter6: Vector Spaces
Section6.7: Applications
Problem 18EQ
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The elongation E of a spring balance varies directly with the applied weight W (see the figure). If E=5 when
W= 20, find E when W= 15.
W
(Type an integer or a simplified fraction.)
Transcribed Image Text:The elongation E of a spring balance varies directly with the applied weight W (see the figure). If E=5 when W= 20, find E when W= 15. W (Type an integer or a simplified fraction.)
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