Question 119601
looking at protein __ (12%)A+(15%)B=15 __ 12A+15B=1500


looking at carbohydrates (9%)A+(5%)B=7.5 __ 9A+5B=750 __ 27A+15B=2250


subtracting the protein equation from the carbohydrate equation gives 15A=750 __ A=50


12(50)+15B=1500 __ 600+15B=1500 __ 15B=900 __ B=60