Gonzalez Manufacturing borrowed ​$39000. Part of the money was borrowed at 8​%, part at 10​%, and part at 12​%. The annual interest was $3960​, and the total amount borrowed at 8​% and 10​% was twice the amount borrowed at 12​%. Use Gaussian elimination or​ Gauss-Jordan elimination to find the amount borrowed at each rate.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter9: Systems Of Equations And Inequalities
Section9.1: Systems Of Equations
Problem 25E
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Gonzalez Manufacturing borrowed ​$39000. Part of the money was borrowed at 8​%, part at 10​%, and part at 12​%. The annual interest was $3960​, and the total amount borrowed at 8​% and 10​% was twice the amount borrowed at 12​%. Use Gaussian elimination or​ Gauss-Jordan elimination to find the amount borrowed at each rate. 

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