6. Jimmy likes to eat cereal for breakfast and requires a breakfast diet that includes at least 900g of carbohydrates, at least 400g of iron but no more than 1320g of sugar a week. His two favourite brands are Kendrick Krunch and Corn Drakes. Kendrick Krunch contains 110g of carbohydrates, 10g of iron and 60g of sugar per box. Corn Drakes contain 50g of carbohydrates, 50g of iron and 60g of sugar per box. Kendrick Krunch costs $6 a box, Corn Drakes cost $3 a box. Jimmy wants to minimise how much money he spends on cereal while meeting his dietary requirements. Carbohydrates (g) Iron (g) Sugar (g) Cereal Brand Kendrick Krunch Corn Drakes Macronutrients Required 110 50 10 Let: "x" be the number of boxes of Kendrick Krunch "y" be the number of boxes of Corn Drakes 50 60 a) Fill in the 3 empty "Macronutrient Totals" cells in the table above according to Jimmy's dietary requirements outlined above. c) Write the Protein constraint to slope-intercept form. 60

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