A diet is to include at least 140 milligrams of vitamin A and at least 140 milligrams of vitamin B. These requirements are to be obtained from two types of food. Type X contains 10 milligrams of vitamin A and 20 milligrams of vitamin B per pound. Type Y contains 30 milligrams of vitamin A and 50 milligrams of vitamin B per pound. If type X food costs $12.00 per pound and type Y food costs $8.00 per pound how many pounds of each type of food should be purchased to satisfy the requirements at the minimum costs? What is the minimum cost?

(co 3) the soup produced by a company has a salt level that is normally distributed with a mean of 5.4 grams and a standard deviation of 0.3 grams. the company takes readings of every 10th bar off the production line. the reading points are 5.8, 5.9, 4.9, 6.5, 5.0, 4.9, 6.2, 5.1, 5.7, 6.1. is the process in control or out of control and why? it is out of control as two of these data points are more than 2 standard deviations from the mean it is in control as the data points more than 2 standard deviations from the mean are far apart it is out of control as one of these data points is more than 3 standard deviations from the mean it is in control as the values jump above and below the mean