Gonzalez Manufacturing borrowed $30000. Part of the money was borrowed at 12%, part at 14%, and part at 16%. The annual interest was $4320, and the total amount borrowed at 12% and 14% was twice the amount borrowed at 16%. Use Gaussian elimination or Gauss-Jordan elimination to find the amount borrowed at each rate.

Question

Gonzalez Manufacturing borrowed ​$30000. Part of the money was borrowed at 12​%, part at 14​%, and part at 16​%. The annual interest was ​$4320​, and the total amount borrowed at 12​% and 14​% was twice the amount borrowed at 16​%. Use Gaussian elimination or​ Gauss-Jordan elimination to find the amount borrowed at each rate.
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Part 1
How much money was borrowed at 12​%? 
​answer: $4000
Part 2
How much money was borrowed at 14​%? 
​$?

It isn't 16000 or 18000

GPT 3.5 · Answer

$8000