Formulate the the situation as a system of linear equations.
Formulate the the situation as a system of linear equations. Solve using the Gauss-Jordan method.
A large commercial farm needs 43,500 pounds of potash, 83,500 pounds of nitrogen, and 31,000 pounds of phosphoric acid. Three brands of fertilizer, Growrite, MiricalMix and GreatGreen, are available and contain the amounts of potash, nitrogen and phosphoric acid per truck load listed in the table. How many truckloads of each brand should be used to provide the required potash, nitrogen and phosphoric acid?
X1=______ truckloads of GrowRite
X2= _____ Â truckloads of MiracleMix
X3= _____ Â truckloads of GreatGreen
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                    GrowRIte      MiracleMix     GreatGreen
Potash                 400           600         700
Nitrogen               500           1000        1600
Phosphoric Acid        300            400          500
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Posted 23 Apr 2017 11:04 AM
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