小学数学解答网
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\u7406\u6cbb\u4e4b\u4e66\uff1f\u6240\u4ee5\u6211\u8fd9\u4e00\u6bb5\u6545\u4e8b\uff0c\u4e5f\u4e0d\u613f\u4e16\u4eba\u79f0\u5947\u9053\u5999\uff0c\u4e5f\u4e0d\u5b9a
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\u4e0d\u6bd4\u90a3\u4e9b\u80e1\u7275\u4e71\u626f\uff0c\u5ffd\u79bb\u5ffd\u9047\uff0c\u6ee1\u7eb8\u624d\u4eba\u6dd1\u5973\u3001\u5b50\u5efa\u6587\u541b\u7ea2\u5a18
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\u89c1\u4e0a\u9762\u867d\u6709\u4e9b\u6307\u5978\u8d23\u4f5e\u8d2c\u6076\u8bdb\u90aa\u4e4b\u8bed\uff0c\u4ea6\u975e\u4f24\u65f6\u9a82\u4e16\u4e4b\u65e8\uff1b\u53ca
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\u53c8\u975e\u5047\u62df\u5984\u79f0\uff0c\u4e00\u5473\u6deb\u9080\u8273\u7ea6\u3001\u79c1\u8ba2\u5077\u76df\u4e4b\u53ef\u6bd4\u3002\u56e0\u6beb\u4e0d\u5e72\u6d89
\u65f6\u4e16\uff0c\u65b9\u4ece\u5934\u81f3\u5c3e\u6284\u5f55\u56de\u6765\uff0c\u95ee\u4e16\u4f20\u5947\u3002\u4ece\u6b64\u7a7a\u7a7a\u9053\u4eba\u56e0\u7a7a\u89c1
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\u5934\u8bb0\u300b\u4e3a\u300a\u60c5\u50e7\u5f55\u300b\u3002\u4e1c\u9c81\u5b54\u6885\u6eaa\u5219\u9898\u66f0\u300a\u98ce\u6708\u5b9d\u9274\u300b\u3002\u540e\u56e0
\u66f9\u96ea\u82b9\u4e8e\u60bc\u7ea2\u8f69\u4e2d\u62ab\u9605\u5341\u8f7d\uff0c\u589e\u5220\u4e94\u6b21\uff0c\u7e82\u6210\u76ee\u5f55\uff0c\u5206\u51fa\u7ae0\u56de
\u5f53\u65e5\u5730\u9677\u4e1c\u5357\uff0c\u8fd9\u4e1c\u5357\u4e00\u9685\u6709\u5904\u66f0\u59d1\u82cf\uff0c\u6709\u57ce\u66f0\u960a\u95e8\u8005\uff0c\u6700\u662f
\u7ea2\u5c18\u4e2d\u4e00\u4e8c\u7b49\u5bcc\u8d35\u98ce\u6d41\u4e4b\u5730\u3002\u8fd9\u960a\u95e8\u5916\u6709\u4e2a\u5341\u91cc\u8857\uff0c\u8857\u5185\u6709\u4e2a
\u4ec1\u6e05\u5df7\uff0c\u5df7\u5185\u6709\u4e2a\u53e4\u5e99\uff0c\u56e0\u5730\u65b9\u7a84\u72ed\uff0c\u4eba\u7686\u547c\u4f5c\u846b\u82a6\u5e99\u3002\u5e99\u65c1
\u4f4f\u7740\u4e00\u5bb6\u4e61\u5ba6\uff0c\u59d3\u7504\uff0c\u540d\u8d39\uff0c\u5b57\u58eb\u9690\u3002\u5ae1\u59bb\u5c01\u6c0f\uff0c\u60c5\u6027\u8d24\u6dd1\uff0c
\u6df1\u660e\u793c\u4e49\u3002\u5bb6\u4e2d\u867d\u4e0d\u751a\u5bcc\u8d35\uff0c\u7136\u672c\u5730\u4fbf\u4e5f\u63a8\u4ed6\u4e3a\u671b\u65cf\u4e86\u3002\u56e0\u8fd9
所以6时敲响6下，间隔5个，需要2×5=10秒。
敲钟的时间是从开始敲第一下时算起，从最后一下结束时停止计算，又假设相邻俩下的间隔时间是一样的话，则间隔时间t=T/（n-1）4秒敲三下意味着间隔时间t=4/（3-1）又T=t*（n-1）=2*（6-1）=10秒
6*4/3=8 故需要八秒
敲6下需要8秒
绛旓細灏忓鏁板瑙ｇ瓟缃 锛岄鐩憿锛熻繕鏄紵灏忓己鏈夋鏂瑰舰鍜岄暱鏂瑰舰涓ょ涓嶅悓褰㈢姸鐨勭焊鏉匡紝鍏朵腑姝ｆ柟褰㈠拰闀挎柟褰㈢焊鏉跨殑涓暟姣旀槸2锛5锛屼粬鐢ㄨ繖浜涚焊鏉垮仛鎴愯嫢骞蹭釜鍗у紡鍜岀珛寮忕殑鏃犵洊闀挎柟褰㈢焊鐩掞紝绾告澘鍒氬ソ鐢ㄥ畬锛岄偅涔堝崸寮忕焊鐩掑拰绔嬪紡绾哥洅鐨勪釜鏁版瘮鏄灏戯紵杩樻湁娌℃湁涓涓潯浠讹細闀挎柟褰㈢焊鏉跨殑瀹界瓑浜庢鏂瑰舰绾告澘鐨勮竟闀 鍋囪鏈夎繖涓潯浠 鍋...
绛旓細鍥犱负姣忔暡鍝嶄竴涓嬬殑闂撮殧涓2绉掞紱鎵浠6鏃舵暡鍝6涓嬶紝闂撮殧5涓紝闇瑕2脳5=10绉掋
绛旓細Y = 600鍒嗛挓 = 10灏忔椂 涔熷氨鏄16鐐20鍒
绛旓細鏍规嵁杩欎袱涓潯浠跺彲浠ョ煡閬撳鐢熸暟鏈灏戜负9脳7-4=59浜猴紝杩樺彲浠ユ槸9脳7脳2-4=122锛9脳7脳3-4=185锛9脳7脳4-4=248锛---锛屼絾鏄綋浜烘暟涓59浜烘椂锛屼笉婊¤冻鏉′欢鈥滃钩鍧囧垎鎴5缁勫2浜衡濓紝鑰122鍙互婊¤冻鏉′欢锛屾晠鏈灏戜汉鏁
绛旓細鎴戜滑瀛︿範瀹屼簡姣旂殑搴旂敤锛屽湪瑙ｇ瓟姣旂殑搴旂敤棰樻椂锛屽簲鍏堣鎳傞鐩腑鐨勫墠椤瑰拰鍚庨」鍒嗗埆浠ｈ〃浠涔堬紝杩欐牱鎵嶈兘纭В棰樻纭傛垜浠繕瀛︿範浜嗚繛姣旓紝鍙互灏嗕袱涓笉鍚岀殑姣斿悎浜屼负涓銆傚鐢:涔=3:4锛屼箼:涓=7:9锛岄偅涔 鐢:涔:涓 3:4 7:9 鈹鈹鈹鈹鈥21:28:36 杩炴瘮瀵瑰簲鐢ㄩ涔熸湁寰堝ぇ浣滅敤銆傝繖閲屾潵鑰冭冨ぇ瀹讹紝鐪嬬湅浣...
绛旓細澶ч挓鏁5涓嬶紝姣忔暡涓や笅鏄竴涓棿闅旓紝鏁5涓嬫湁4涓棿闅 姣忎釜闂撮殧鐨勬椂闂=8梅4=2绉 12鏃舵暡12涓嬶紝鏈12-1=11涓棿闅旓紝2脳11=22绉 鎵浠ワ紝12鏃舵暡12涓嬶紝闇瑕22绉
绛旓細1銆侀浮鍏斿悓绗,鏈8涓ご,20鏉¤吙,楦″厰鍚勬湁澶氬皯鍙?璁鹃浮x,鍏8-x 2x+4锛8-x锛=20 2x+32-4x=20 2x=12 x=6 楦6鍙,鍏2鍙 2銆侀浮鍏斿悓绗,鏈11涓ご,36鏉¤吙,楦″厰鍚勬湁澶氬皯鍙?璁鹃浮x,鍏11-x 2x+4锛11-x锛=36 2x+44-4x=36 2x=8 x=4 楦4鍙,鍏7鍙 3銆佺瀛愰噷鏈夐浮鍏,鍏5鍙,14鏉¤吙...
绛旓細1.灏忕孩璇达細鈥滀粖澶╁崠鍑鸿‖琛32浠讹紝姣旀槰澶╁皯2浠躲傛槰澶╁崠鍑鸿‖琛灏戜欢锛32+2=34锛堜欢锛2.楦藉瓙椋炶閫熷害寰堝揩銆傞『椋庢瘡灏忔椂鑳介琛120鍗冪背锛岀浉褰撲簬瀹冮嗛椋炶閫熷害鐨4鍊嶃傞附瀛愰嗛姣忓皬鏃惰兘椋炶澶氬皯鍗冪背锛熼附瀛愰嗛姣忓皬鏃剁殑閫熷害锛120梅4=30锛堝崈绫筹級3銆 鍘熸湁 鍊熷嚭 杩樺墿 绡悆/涓 18+23=41锛堜釜锛 ...
绛旓細灏忓鏁板棰樼洰瑙ｆ瀽鍏艰亴鍋氭硶濡備笅锛氳鍋氬皬瀛︽暟瀛﹂鐩В鏋愮殑鍏艰亴锛屽彲浠ヨ冭檻浠ヤ笅姝ラ鍜屾柟娉曘傞鍏堬紝闃呰棰樼洰瑕佹眰鍜岃瑙ｅ喅鐨勯棶棰橈紝鐒跺悗閫愭鍒嗘瀽鍜瑙ｇ瓟闂銆傚悓鏃讹紝鍙互鍙傝冩暀鏉愬拰鐩稿叧璧勬枡锛屼簡瑙ｅ搴旂煡璇嗙偣鍜岃В棰樻柟娉曘傛帴涓嬫潵锛屽噯纭湴鍐欏嚭瑙ｉ杩囩▼鍜岀瓟妗堬紝骞惰繘琛岄傚綋鐨勮В閲婂拰鎺ㄧ悊銆傛渶鍚庯紝妫鏌ヨВ绛旂殑鍑嗙‘鎬у拰娓呮櫚搴︼紝骞...
绛旓細鏂规硶涓:瑙:璁惧ぇ楦瓙鏈墄鍙紝鍒欏皬楦瓙鏈(x+26)鍙紝鏍规嵁棰樻剰寰 绛夐噺鍏崇郴涓:澶ч腑瀛愬彧鏁+灏忛腑瀛愬彧鏁=168 x+(x+26)=168 x+x+26=168 2x=142 x=71 x+26=71+26=97 绛:澶ч腑瀛愭湁71鍙紝灏忛腑瀛愭湁97鍙 鏂规硶浜:姝ら杩樺彲浠ョ敤浜屽厓涓娆℃柟绋嬬粍鏉ヨВ 瑙:璁惧ぇ楦瓙鏈墄鍙紝灏忛腑瀛愭湁y鍙紝鏍规嵁棰樻剰寰...
