2022涓婃捣鍏嫏(w霉)鍝¤€冭│琛屾脯瑭﹂锛岄洠榛炶В鏋�锛�
鐎忚
鏀惰棌
2022涓婃捣鍏嫏(w霉)鍝¤€冭│琛屾脯瑭﹂锛岄洠榛炶В鏋�锛�
姹傝В涓嶅畾鏂圭▼
琛屾脯鑰冭│涓皪浜庢暩(sh霉)閲忛棞(gu膩n)绯荤殑寰堝鍟忛鎴戝€戦兘鍙互鐢ㄦ柟绋嬬殑鏂规硶渚嗛€�(j矛n)琛屾眰瑙�锛岄偅涔堝鏋滄垜鍊戠従(xi脿n)鍦ㄥ垪鍑洪€欐ǎ涓€鍊嬫柟绋嬶細2X+3Y=33锛屾垜鍊戝氨娌掓湁杈︽硶鐢ㄤ互鍓嶅(xu茅)缈�(x铆)閬庣殑鏅€氭柟绋嬬殑鐭ヨ瓨渚嗚В姹轰簡銆傛垜鍊戞妸閫欑ó鏈煡鏁�(sh霉)鐨勫€嬫暩(sh霉)澶氫簬鏂圭▼鍊嬫暩(sh霉)鐨勫惈鏈夋湭鐭ユ暩(sh霉)鐨勭瓑寮忕ū鐐轰笉瀹氭柟绋嬨€傜暥(d膩ng)鎴戝€戦潰灏嶄笉瀹氭柟绋嬬殑鏅傚€欐垜鍊戞噳(y墨ng)瑭插浣曞皪鍟忛閫�(j矛n)琛屾眰瑙ｅ憿?鎺ヤ笅渚嗗皬绶ㄥ拰浣犱竴璧蜂締瀛�(xu茅)缈�(x铆)锛�
1.鍒╃敤鏁撮櫎鐗规€цВ涓嶅畾鏂圭▼锛�
渚嬪锛氳嫢2X+3Y=33锛岃珛鍟廥=()
A.2 B.3 C.4 D.5
銆愮瓟妗堛€態銆傝В鏋愶細鎴戝€戝皣鏂圭▼鏁寸悊涓€涓�锛�2X=33-3Y=3(11-Y)锛屾垜鍊戝彲浠ョ湅鍒�2X鐐�3鍜屼竴鍊嬫暩(sh霉)鐨勪箻绌�锛岄偅涔�2X鐐�3鐨勬暣鏁�(sh霉)鍊嶏紝2涓嶆槸3鐨勬暣鏁�(sh霉)鍊�锛岄偅涔圶鎳�(y墨ng)瑭叉槸3鐨勬暣鏁�(sh霉)鍊�锛岀祼(ji茅)鍚�4鍊嬮伕闋呭彲鐭ワ紝鎳�(y墨ng)瑭查伕鎿嘊閬搁爡銆�
绺界祼(ji茅)锛氳嫢涓€鍊嬫湭鐭ユ暩(sh霉)鐨勭郴鏁�(sh霉)鍜屽父鏁�(sh霉)闋呭彲浠ュ悓鏅傝涓€鍊嬫暩(sh霉)鏁撮櫎鏅�锛屽彲浠ヨ€冩叜鍒╃敤鏁撮櫎鐗规€цВ涓嶅畾鏂圭▼銆�
2.鍒╃敤濂囧伓鎬ц唱(zh矛)瑙ｄ笉瀹氭柟绋嬶細
棣栧厛鎴戝€戝厛渚嗗悗椤т竴涓嬪叐鍊嬫暩(sh霉)鐩稿姞娓涘拰鐩镐箻鐨勬檪鍊欑祼(ji茅)鏋滅殑濂囧伓鎬э細濂囨暩(sh霉)±濂囨暩(sh霉)=鍋舵暩(sh霉);鍋舵暩(sh霉)±鍋舵暩(sh霉)=鍋舵暩(sh霉);濂囨暩(sh霉)±鍋舵暩(sh霉)=濂囨暩(sh霉);濂囨暩(sh霉)×濂囨暩(sh霉)=濂囨暩(sh霉);鍋舵暩(sh霉)×鍋舵暩(sh霉)=鍋舵暩(sh霉);濂囨暩(sh霉)×鍋舵暩(sh霉)=鍋舵暩(sh霉)銆�
鎺ヤ笅渚嗕締鐪嬩竴閬撲緥椤岋細4X+3Y=47锛岃珛鍟廦=()
A.4 B.6 C.8 D.9
銆愮瓟妗堛€慏銆傝В鏋愶細4X鐝�(xi脿n)鍦ㄧ偤鍋舵暩(sh霉)锛�47鐐哄鏁�(sh霉)锛屾牴鎿�(j霉)濂囧伓鎬ц唱(zh矛)鍙煡3Y鎳�(y墨ng)瑭茬偤濂囨暩(sh霉)锛屽墖Y涓嶈兘鐐哄伓鏁�(sh霉)鎳�(y墨ng)瑭茬偤濂囨暩(sh霉)锛岀祼(ji茅)鍚�4鍊嬮伕闋呭彲鐭ワ紝鎳�(y墨ng)瑭查伕鎿�,D閬搁爡銆�
绺界祼(ji茅)锛氱暥(d膩ng)鍏朵腑涓€鍊嬫湭鐭ユ暩(sh霉)鐨勭郴鏁�(sh霉)鐐�2鍙�2鐨勫€嶆暩(sh霉)锛屽墖閫欏€嬬郴鏁�(sh霉)鍜屾湭鐭ユ暩(sh霉)鐩镐箻鐨勭祼(ji茅)鏋滅偤鍋舵暩(sh霉)锛岃嫢姝ゆ檪甯告暩(sh霉)闋呯偤鍋舵暩(sh霉)锛屽墖鍙︿竴鍊嬬郴鏁�(sh霉)鍜屾湭鐭ユ暩(sh霉)鐩镐箻鐨勭祼(ji茅)鏋滅偤鍋舵暩(sh霉);鑻ュ父鏁�(sh霉)闋呯偤濂囨暩(sh霉)锛屽墖鍙︿竴鍊嬬郴鏁�(sh霉)鍜屾湭鐭ユ暩(sh霉)鐩镐箻鐨勭祼(ji茅)鏋滅偤濂囨暩(sh霉)銆�
3.灏炬暩(sh霉)娉曪細
渚嬮锛�4X+5Y=49锛孹銆乊閮界偤姝ｆ暣鏁�(sh霉)锛岃珛鍟廥鍜孻鏈夊咕绲勮В()
A.1 B.2 C.3 D.4
銆愮瓟妗堛€慍銆傝В鏋愶細5鍜屼竴鍊嬫暩(sh霉)鐩镐箻鐨勬檪鍊欑⿳鐨勫熬鏁�(sh霉)鍙湁0鍜�5鍏╃ó鎯呮硜锛屽張49鐨勫熬鏁�(sh霉)鐐�9锛屽墖4X鐨勫熬鏁�(sh霉)鐐�9鎴栬€�4銆傚洜鐐�4鏄伓鏁�(sh霉)鍜孹鐩镐箻鐨勭祼(ji茅)鏋滅偤鍋舵暩(sh霉)锛岃嫢4X灏炬暩(sh霉)鐐�9鐨勮┍4X鏄竴鍊嬪鏁�(sh霉)锛屼笉鎴愮珛锛屾墍浠�4X鐨勫熬鏁�(sh霉)涓嶈兘鐐�9鍙兘鐐�4锛屽張鍥犵偤X銆乊閮界偤姝ｆ暣鏁�(sh霉)姝ゆ檪X鍙互鐐�1,6,11,浠ｅ叆鍘熸柟绋嬬浉鎳�(y墨ng)鐨勫彲浠ユ眰鍑篩鐨勫€肩偤锛�9,5,1锛屽叡3绲勮В锛屾墍浠ラ伕鎿嘋閬搁爡銆�
绺界祼(ji茅)锛氱暥(d膩ng)鏂圭▼鐨勪竴鍊嬫湭鐭ユ暩(sh霉)鐨勭郴鏁�(sh霉)鐨勫熬鏁�(sh霉)鐐�5鎴栬€�0鐨勬檪鍊�锛屽彲浠ヨ€冩叜鐢ㄥ熬鏁�(sh霉)娉曟眰瑙ｄ笉瀹氭柟绋�銆�
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