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鐎忚
鏀惰棌
2020骞撮櫆瑗垮叕鍕�(w霉)鍝¤€冭│鏁�(sh霉)閲忛棞(gu膩n)绯荤反缈�(x铆)锛�
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涓嬮潰鐐�2020骞撮櫆瑗垮叕鍕�(w霉)鍝¤€冭│鏁�(sh霉)閲忛棞(gu膩n)绯荤反缈�(x铆)鍙冭€冪瓟妗堬細
1.绛旀锛欰
銆愯В鏋愩€戯細瑷�(sh猫)鏈墄浜鸿臣璨�3浠剁磤(j矛)蹇靛搧锛屾湁y浜鸿臣璨�2浠剁磤(j矛)蹇靛搧锛屽墖鏈�(2x+2y)浜鸿臣璨�1浠剁磤(j矛)蹇靛搧銆傚墖鏍规摎(j霉)椤屾剰鍙緱3x+2y+(2x+2y)=5x+4y=48锛�5x鐨勫熬鏁�(sh霉)鐐�0鎴�5锛屽墖4y鐨勫熬鏁�(sh霉)鐐�8鎴�3锛屽張鍥�4y鏄伓鏁�(sh霉)锛屽洜姝鐨勫熬鏁�(sh霉)蹇呯劧鐐�2鎴�7锛岀敱x≥0锛屽洜姝�4y≤48锛屽嵆y≤12锛屽墖y鍙兘鐨勫€兼湁2銆�7銆�12銆�
鑻=12锛屽墖x=0锛屾鏅傝臣璨风磤(j矛)蹇靛搧鐨勬父瀹汉鏁�(sh霉)鐐簒+y+(2x+2y)=3x+3y=36>32锛屼笉婊胯冻姊濅欢銆傝嫢y=7锛屽墖x=4锛屾鏅傝臣璨风磤(j矛)蹇靛搧鐨勬父瀹汉鏁�(sh霉)鐐�3x+3y=33>32锛屼笉婊胯冻姊濅欢銆傚洜姝=2锛寈=8锛屾鏅傝臣璨风磤(j矛)蹇靛搧鐨勬父瀹汉鏁�(sh霉)鐐�3x+3y=30锛屽墖鏈�32-30=2(浜�)娌掓湁璩艰卜绱€(j矛)蹇靛搧銆傚洜姝闋�(xi脿ng)鐣�(d膩ng)閬�銆�
2.绛旀锛欱
銆愯В鏋愩€戯細鏍规摎(j霉)椤屾剰鍙煡锛屾瘡浜烘渶澶氭嬁3鍊�锛屼篃鍙互涓嶆嬁銆傝嫢涓嶆嬁锛屽墖鏈�1绋�;鑻ユ嬁1鍊�锛屽墖鏈�=3(绋�);鑻ユ嬁2鍊嬶紝鍓囨湁+=6(绋�);鑻ユ嬁3鍊�锛屽墖鏈�+×+=10(绋�)銆傚洜姝や竴鍏辨湁1+3+6+10=20(绋�)锛屽洜姝ゆ渶澶氬彲鍒嗙偤20绲�锛�321/20=16……1锛屽嵆浜烘暩(sh霉)鏈€澶氱殑涓€绲勮嚦灏戞湁16+1=17(鍚�)鍝″伐銆傚洜姝闋�(xi脿ng)鐣�(d膩ng)閬�銆�
3.绛旀锛欳
銆愯В鏋愩€戯細鐢变簬姣忓悕鐞冨摗姣忓ぉ鏈€澶氬彧鍙冨姞涓€鍫存瘮璩斤紝鍓囧懆涓€110鍚嶇悆鍝＄劇杓┖;鍛ㄤ簩55鍚嶇悆鍝℃湁杓┖;鍛ㄤ笁28鍚嶇悆鍝＄劇杓┖;鍛ㄥ洓14鍚嶇悆鍝＄劇杓┖;鍛ㄤ簲7鍚嶇悆鍝℃湁杓┖;鍛ㄥ叚4鍚嶇悆鍝＄劇杓┖;鍛ㄦ棩鏄啝杌嶇埈濂紝鐒¤吉绌�銆備竴鍏辨瘮璩�7澶╋紝鍛ㄤ簩銆佸懆浜斿叐鍊嬫瘮璩芥棩鏈夎吉绌�銆傚洜姝闋�(xi脿ng)鐣�(d膩ng)閬搞€�
4.绛旀锛欱
銆愯В鏋愩€戯細鏍规摎(j霉)椤屾剰鍙煡锛岀敳闅�(du矛)澧炲姞鏀跺壊姗�(j墨)鍓嶅悗锛屼笁闅�(du矛)鍚堜綔瀹屾垚鐨勬檪闁撳垎鍒ョ偤5澶�銆�4澶╋紝鏅傞枔涔嬫瘮鐐�5:4锛屽伐绋嬬附閲忕浉鍚�锛屾檪闁撹垏鏁堢巼鎴愬弽姣旓紝鍓囧鍔犳敹鍓叉(j墨)鍓嶅悗涓夐殜(du矛)鍚堜綔鐨勬晥鐜囦箣姣旂偤4:5锛屽亣瑷�(sh猫)澧炲姞鏀跺壊姗�(j墨)涔嬪墠涓夐殜(du矛)鍏辨湁鏀跺壊姗�(j墨)4x鑷猴紝鍓�4x+5=5x锛岃В寰梮=5锛屽墖涓夊€嬫敹鍓查殜(du矛)鍘熸湁鏀跺壊姗�(j墨)4x=4×5=20(鑷�)銆傚張鐢查殜(du矛)鐨勫伐鏁堣垏涔欍€佷笝鍏╅殜(du矛)鍚堜綔鐨勫伐鏁堢浉鍚�锛屽墖涔欍€佷笝鍏╅殜(du矛)鏀跺壊姗�(j墨)鑷烘暩(sh霉)鐐虹附鑷烘暩(sh霉)鐨勪竴鍗�锛屽嵆10鑷�锛屽凡鐭ヤ笝闅�(du矛)宸ユ晥涓嶅皬浜庝箼闅�(du矛)锛屽墖涓欓殜(du矛)鏀跺壊姗�(j墨)鑷烘暩(sh霉)涓嶅皯浜庝箼闅�(du矛)锛岃嚦灏戞湁5鑷�銆傚洜姝闋�(xi脿ng)鐣�(d膩ng)閬�銆�
5.绛旀锛欴
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鍒嗘儏娉佽◣璜栵細
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