An entrepreneur manufactures loading drums. He builds two types: an ordinary and a deluxe model. With the labor and equipment, he has available, he can build 150 ordinary and 120 deluxe models per month, but not more than a total of 200 drums per month. He has fixed orders of 40 ordinaries and 10 deluxe models per month. let x be the number of ordinary models and y be the number of deluxe models that he manufactures per month. use the following constraints to determine the feasible region for his manufacturing process.
x+y <_ 200
40 <_ x <_ 150
10 <_ y <_ 120
x,y E(element) N0