Gaus-Jordan Elimination:
A glass of skim milk supplies 0.1 mg of iron, 8.5 g of protein,and 1 g of carbohydrates. A quarter pound of lean red meat provides3.4 mg of iron, 22 g of protein, and 20 g of carbohydrates. Twoslices of whole-grain bread supply 2.2 mg of iron, 10 g of protein,and 12 g of carbohydrates. If a person on a special diet must have22.9 mg of iron, 173.5 g of protein, and 131 g of carbohydrates,how many glasses of skim milk, how many quarter-pound servings ofmeat, and how many two-slice servings of whole-grain bread willsupply this?
| skimmilk | | glasses |
| meat | Â Â Â Â Â | quarter-pound servings |
| whole-grain bread | Â Â Â Â Â | two-slice servings |