## Related questions with answers

A dietician is planning a snack package of fruit and nuts. Each ounce of fruit will supply zero units of protein, 2 units of carbohydrates, and 1 unit of fat, and will contain 20 calories. Each ounce of nuts will supply 3 units of protein, 1 unit of carbohydrate, and 2 units of fat, and will contain 30 calories. Every package must provide at least 6 units of protein, at least 10 units of carbohydrates, and no more than 9 units of fat. Find the number of ounces of fruit and number of ounces of nuts that will meet the requirement with the least number of calories. What is the least number of calories?

Solution

VerifiedLet

x = ounces of fruit,

y= ounces of nuts.

The problem is to MINIMIZE calories, $z=20x+30y$

subject to:

$\left\{\begin{array}{ll} 3y\geq 6 & \text{... protein } \\ 2x+y\geq 10 & \text{... carbohydrates } \\ x+2y\leq 9 & \text{... fat } \end{array}\right.$

and $\mathrm{x}\geq 0, \mathrm{y}\geq 0.$

Sketch the feasible region in quadrant I (x and y are nonnegative).

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