farmer can buy two types of plant food, mix A and mix B. Each cubic yard of mix A contains 20 pounds of phosphoric acid, 30 pounds of nitrogen, and 5 ounds of potash. Each cubic yard of mix B contains 10 pounds of phosphoric acid, 30 pounds of nitrogen, and 10 pounds of potash. The minimum monthly requirements are 500 pounds of phosphoric acid, 990 pounds of nitrogen, and 220 pounds of potash. If mix A costs $20 per cubic yard and mix B osts $30 per cubic yard, how many cubic yards of each mix should the farmer blend to meet the minimum monthly requirements at a minimum cost? What = this cost? apted costs $20 per cubic yard and mix B costs $30 per cubic yard, the farmer should blend yd3 of mix A and yd³ of mix B to meet the minimum requirements at a minimum cost. The cost is $

A goal is to get at least 10% of daily calories from polyunsaturated fats as are found in various nuts, oils, and fish. One serving of walnuts (about 15 pieces) has about 20 g of polyunsaturated fat. Each fat gram has 9 calories. About what percent of daily calories does one serving of walnuts provide, assuming a 2,000-calorie diet?

Ricardo has 25 acres of tobacco. He strip-tilled a 14-inch row. He applied 6.5 fluid ounces per acre of herbicide A, and 2 pints per acre of herbicide B for weed control. He applied 280-240-275 units of fertilizer per acre. He used 46-0-0 urea at $408.15 per ton, 18-46-0 DAP at $497.35 per ton, and 0-0-50 sulfate of potash at $648.10 per ton. He planted the tobacco 18 inches apart in rows 36 inches apart. a. What width strip of land was no-till? b. How many pints of herbicide A were applied? c. How many gallons of herbicide B were applied? d. How many pounds per acre of bulk fertilizer were used? e. What did the fertilizer cost?

Cholesterol intake should be limited to 300 milligrams or less each day. Two McDonald's Quarter Pounders and three Burger King Whoppers with cheese contain 520 milligrams of cholesterol. Three Quarter Pounders and one Whopper  with exceed the suggested daily intake by 53 milligrams. Determine the cholesterol content in each item.