"zen inc. manufactures two types of products, the g1 and the t1 model airplane. the manufacturing process consists of two principal departments: production and assembly. the production department has 58 skilled workers, each of whom works 7 hours per day. the assembly department has 25 workers, who also work 7-hour shifts. on an average, to produce a g1 model, zen inc. requires 3.5 labor hours for production and 2 labor hours for assembly. the t1 model requires 4 labor hours for production and 1.5 labor hours in assembly. the company anticipates selling at least 1.5 times as many t1 models as g1 models. the company operates five days per week and makes a net profit of $130 on the g1 model, and $150 on the t1 model. zen inc. wants to determine how many of each model should be produced on a weekly basis to maximize net profit."

explanation:

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two years ago, when picking flowers in the mountains back of yosemite valley, i found a book. it was blotted and storm-beaten; all of its outer pages were mealy and crumbly. the paper seemed to dissolve like the snow beneath which it had been buried, however; many of the inner pages were well preserved. and although all were more or less stained and torn, whole chapters were easily readable. this is the condition of the great open book of yosemite glaciers today; its granite pages have been torn and blurred by the same storms that wasted the castaway book.

two years ago, when picking flowers in the mountains back of yosemite valley; i found a book. it was blotted and storm-beaten, all of its outer pages were mealy and crumbly. the paper seemed to dissolve like the snow beneath which it had been buried, however, many of the inner pages were well preserved. and although all were more or less stained and torn; whole chapters were easily readable. this is the condition of the great open book of yosemite glaciers today, its granite pages have been torn and blurred by the same storms that wasted the castaway book.