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HW: Solving Systems Using Ma x + webasslgnnet 12. Hz Points] PRACTICE ANOTHER A preschool has Campbell's Chunky Beef soup, which contains 2.5 g of Fat and 15 mg of cholesterol per serving (cup), and Campbell's Chunky Sirloin Burger soup, which contains 7 g of fat and 15 mg of cholesterol per serwng. Ev combining the soups, it IS possible to get 26 serwngs of soup that will have 119 g of fat and 390 mg of cholesterol. How many cups of each soup should be used? b... :cws Need Help? Submit Answer 13. [16 Points] DETAILS PRACTICE ANOTHER A man has $290,000 invested in three properties One earns 12%, one 10% and one 8%. His annual income from the properties is $27,600 and the amount invested at 8% Is twice that invested at 12%. (a) How much is invested in each property7 (b) What is the annual Income from each property? Need Help? 14. [13 Points] PRACTICE ANOTHER 11. [011 Points] Submitted PREVIOUS ANSWERS PRACTICE ANOTHE The system of equations may have a unique solution, an infinite number of solutions, or no solution. Use matrices to find the general solution of the system, if a solution exists. (If there is no solution, enter NO SOLUTION. If there are infinitely many solutions, express your answers in terms ofz as in Example 3.) 2X75y+z= 9 X+4y76z:72 3X74y722 10 (X.y.2):( 171,1 ) X _ .______.__ ___...__ Each ounce of substance A supplies 7% of the required nutrition a patient needs. Substance B supplies 15% of the required nutrition per ounce, and substance C supplies 10% of the required nutrition per ounce. If digestive restrictions require that substances A and C be given in equal amounts and that the amount of substance B be one-fifth of these other amounts, find the number of ounces of each substance that should be in the meal to provide 100% nutrition. substance A E oz substance B S oz substance C E oz Need Help? _ Use row operations on an augmented matrix to solve the given system of linear equations. X2y+3z+w 12 X3y+ zw=22 xy = 7 x +z+w= 2 (x,y,z,w}=( 1.7,2.7, 4.3,8 x ) HW: Solving Systems Using Ma x + {Ti'l MY NOTES PRACTICE ANOTHER 103 0 x+4y+22:3 9 2xiy :3 4 x+4y+22=4 01; 0 000 1 (a) Use the reduced matrix to find the general solution of the system, if one exists. (If there is no solution, enter NO SOLUTION. If there are infinitely many solutions, express your answers in terms ofz as in Example 3.) ix.y,z)=( ) (b) If multiple solutions exist, find two specic solutions. (Enter your answers as a comma-separated list of ordered triples. If there is no solution, enter NO SOLUTION.) (X. V, Z) : Need Help? Submit Answer 8. [-11 Points] PRACTICE ANOTHER The system of equations may have a unique solution, an innite number of solutions, or no solution Use matrices to find the general solution of the system, if a solution exists. (If there is no solution, enter ND SOLUTION. If there are innitely many solutions, express your answers in terms ofz as in Example 3 ) X+ y+ 2:0 4X7 yiz U 7X+4y+42:0 mi ) Need Help? @