绾挎�ц鍒掔殑瀹為檯搴旂敤涓句緥
涓轰簡渚夸簬鍚屽浠帉鎻＄嚎鎬ц鍒掔殑涓�鑸悊璁哄拰鏂规硶锛屾湰鏂囨嫙灏辩畝鍗曠殑绾挎�ц鍒?/p>
(
鍗充袱
涓彉閲忕殑绾挎�ц鍒?/p>
)
鐨勫疄闄呭簲鐢ㄤ妇渚嬪姞浠ヨ鏄庛�?/p>
1
鐗╄祫璋冭繍涓殑绾挎�ц鍒掗棶棰?/p>
渚?/p>
1
A
锛?/p>
B
涓や粨搴撳悇鏈夌紪缁囪
50
涓囦釜鍜?/p>
30
涓囦釜锛岀敱浜庢姉娲姠闄╃殑闇�瑕侊紝鐜伴渶璋冭繍
40
涓囦釜
鍒扮敳鍦帮紝
20
涓囦釜鍒颁箼鍦般�傚凡鐭ヤ粠
A
浠撳簱璋冭繍鍒扮敳銆佷箼涓ゅ湴鐨勮繍璐瑰垎鍒负
120
鍏?/p>
/
涓囦釜銆?/p>
180
鍏?/p>
/
涓囦釜锛涗粠
B
浠撳簱璋冭繍鍒扮敳銆佷箼涓ゅ湴鐨勮繍璐瑰垎鍒负
100
鍏?/p>
/
涓囦釜銆?/p>
150
鍏冿紡涓囦釜銆傞棶濡備綍璋冭繍锛岃兘
浣挎�昏繍璐规渶灏?/p>
?
鎬昏繍璐圭殑鏈�灏忓�兼槸澶氬皯
?
瑙ｏ細
璁句粠
A
浠撳簱璋冭繍
x
涓囦釜鍒扮敳鍦帮紝
y
涓囦釜鍒颁箼鍦帮紝鎬昏繍璐硅涓?/p>
z
鍏冦�傞偅涔堥渶浠?/p>
B
浠撳簱璋?/p>
杩?/p>
40-x
涓囦釜鍒扮敳鍦帮紝璋冭繍
20-y
涓囦釜鍒颁箼鍦般�?/p>
浠庤�屾湁
z=120x+180y+100(40-x)+150路
(20-y)=20x+30y+7000
銆?/p>
浣滃嚭浠ヤ笂涓嶇瓑寮忕粍鎵�琛ㄧず鐨勫钩闈㈠尯鍩?/p>
(
鍥?/p>
1)
锛屽嵆鍙鍩熴�?/p>
浠?/p>
z'=z-7000=20x+30y.
浣滅洿绾?/p>
l
锛?/p>
20x+30y=0
锛?/p>
鎶婄洿绾?/p>
l
鍚戝彸涓婃柟骞崇Щ鑷?/p>
l
l
鐨勪綅缃椂锛?/p>
鐩寸嚎缁忚繃鍙鍩熶笂鐨勭偣
M(30
锛?/p>
0)
锛?/p>
涓斾笌鍘熺偣璺濈鏈�灏忥紝
鍗?/p>
x=30
锛?/p>
y=0
鏃讹紝
z'=20x+30y
鍙栧緱鏈�灏忓�硷紝浠庤�?/p>
z=z'+7000=20x+30y+7000
浜﹀彇寰楁渶灏忓�硷紝
z
min
=20脳
30+30脳
0+7000=7600(
鍏?/p>
)
銆?/p>
绛旓細
浠?/p>
A
浠撳簱璋冭繍
30
涓囦釜鍒扮敳鍦帮紝浠?/p>
B
浠撳簱璋冭繍
10
涓囦釜鍒扮敳鍦帮紝
20
涓囦釜鍒颁箼鍦帮紝鍙娇鎬?/p>
杩愯垂鏈�灏忥紝涓旀�昏繍璐圭殑鏈�灏忓�间负
7600
鍏冦�?/p>
2
浜у搧瀹夋帓涓殑绾挎�ц鍒掗棶棰?/p>
渚?/p>
2
鏌愰ゲ鏂欏巶鐢熶骇鐢层�佷箼涓ょ鍝佺墝鐨勯ゲ鏂欙紝宸茬煡鐢熶骇鐢茬楗叉枡
1
鍚ㄩ渶鑰楃帀绫?/p>
0.4
鍚紝楹﹂焊
0.2
鍚紝鍏朵綑娣诲姞鍓?/p>
O.4