document.write( "Question 328751: Can someone please walk me through this?\r
\n" ); document.write( "\n" ); document.write( "The daily requirements of a balanced diet for an animal are shown in the nutritional pyramid. The number of grams per cup of nutrients in three food mixes are shown in the table. How many cups of each mix should be used to meet the daily requirements for protein, carbohydrates, and essential fatty acids in the animal's diet? To answer this problem, write a system of three equations and solve it using Cramer's rule. Assume a = 5, b = 10 and c = 19\r
\n" ); document.write( "\n" ); document.write( "Pyramid (top to bottom)
\n" ); document.write( "Vitamins
\n" ); document.write( "Minerals
\n" ); document.write( "Essential Fatty Acids a grams
\n" ); document.write( "Carbohydrates b grams
\n" ); document.write( "Quality Protein c grams\r
\n" ); document.write( "\n" ); document.write( " Grams per cup
\n" ); document.write( "Mix A Protein 4 Carbohydrates 2 Fatty Acids 1
\n" ); document.write( "Mix B Protein 8 Carbohydrates 3 Fatty Acids 2
\n" ); document.write( "Mix C Protein 3 Carbohydrates 3 Fatty Acids 1\r
\n" ); document.write( "\n" ); document.write( "___ cup(s) mix A
\n" ); document.write( "___ cup(s) mix B
\n" ); document.write( "___ cup(s) mix C\r
\n" ); document.write( "\n" ); document.write( "Thank you,
\n" ); document.write( "Jerry
\n" ); document.write( "

Algebra.Com's Answer #235543 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
The daily requirements of a balanced diet for an animal are shown in the nutritional pyramid. The number of grams per cup of nutrients in three food mixes are shown in the table. How many cups of each mix should be used to meet the daily requirements for protein, carbohydrates, and essential fatty acids in the animal's diet? To answer this problem, write a system of three equations and solve it using Cramer's rule. Assume a = 5, b = 10 and c = 19
\n" ); document.write( "Pyramid (top to bottom)
\n" ); document.write( "Vitamins
\n" ); document.write( "Minerals
\n" ); document.write( "Essential Fatty Acids a=5 grams
\n" ); document.write( "Carbohydrates b=10 grams
\n" ); document.write( "Quality Protein c=19 grams
\n" ); document.write( "Grams per cup
\n" ); document.write( "Mix A Protein 4 Carbohydrates 2 Fatty Acids 1
\n" ); document.write( "Mix B Protein 8 Carbohydrates 3 Fatty Acids 2
\n" ); document.write( "Mix C Protein 3 Carbohydrates 3 Fatty Acids 1
\n" ); document.write( "---
\n" ); document.write( "Acid equation: A + 2B + C = 5
\n" ); document.write( "Carbo equatin:2A + 3B +3C = 10
\n" ); document.write( "Protin equatio:4A + 8B + 3C = 19
\n" ); document.write( "--------------------------------------
\n" ); document.write( "Used a TI-84 to get the following:
\n" ); document.write( "A = 2 cups
\n" ); document.write( "B = 1 cups
\n" ); document.write( "C = 1 cups
\n" ); document.write( "============================
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "=============
\n" ); document.write( "___ cup(s) mix A
\n" ); document.write( "___ cup(s) mix B
\n" ); document.write( "___ cup(s) mix C
\n" ); document.write( "
\n" ); document.write( "
\n" );