¼×ϲ»¶ºÈÎ÷ºþÁú¾®²è£¬ÒÒϲ»¶ºÈ¿§·È£®1°üÎ÷ºþÁú¾®²èÒ¶£¬¼×¡¢ÒÒÁ½ÈËÒ»ÆðºÈ10ÌìºÈÍ꣬¼×µ¥¶ÀºÈÔò±ÈÒÒµ¥¶ÀºÈ¿ì48ÌìºÈÍꣻ 1¹Þ¿§·È£¬¼×¡¢ÒÒÁ½ÈËÒ»ÆðºÈ12ÌìºÈÍ꣬ÒÒµ¥¶ÀºÈÔòÐè20ÌìºÈÍ꣮
£¨1£©¼×¡¢ÒÒµ¥¶ÀºÈÍê1°ü²èÒ¶¸÷Ðè¶àÉÙÌ죿
£¨2£©¼ÙÈçÏÖÔÚÈü׵¥¶ÀÏȺȿ§·È£¬¶øÈÃÒÒµ¥¶ÀÏȺȲ裬¼×ÔÚÓп§·ÈµÄÇé¿öϾö²»ÄܺÈ×Ô¼ºÏ²»¶µÄ²è£¬¶øÒÒÔÚÓвèÒ¶µÄÇé¿öϾö²»ÄܺÈ×Ô¼ºÏ²»¶µÄ¿§·È£¬ÎÊÁ½ÈËÒ»ÆðºÈÍê1°ü²èÒ¶ºÍ1¹Þ¿§·ÈÐèÒª¶àÉÙÌ죿
¡¾´ð°¸¡¿
·ÖÎö£º£¨1£©ÓÃÒ»¸ö×Öĸ±íʾ³ö¼×ÒÒÁ½È˵Ť×÷Á¿£¬µÈÁ¿¹ØϵΪ£º¼×ÒҺͺÈ10ÌìµÄ¹¤×÷Á¿=1£¬°ÑÏà¹ØÊýÖµ´úÈë¼ÆËã¼´¿É£»
£¨2£©Ò׵ü×ÒҺȿ§·ÈµÄ¹¤×÷ЧÂÊ£¬ºÈ¿§·ÈÓõÄÌìÊýÉÙ£¬Ëã³ö¼×ºÈ¿§·ÈÓõÄÌìÊý£¬½ø¶ø¼ÓÉϼ×ÒҺͺȲèÒ¶ÓõÄÌìÊý¼´ÎªÁ½ÈËÒ»ÆðºÈÍê1°ü²èÒ¶ºÍ1¹Þ¿§·ÈÐèÒªÌìÊý£®
½â´ð£º½â£º£¨1£©Éè¼×µ¥¶ÀxÌìºÈÍê1°ü²èÒ¶£¬ÔòÿÌìºÈµÄ²èҶΪ
£¬
ÒÒµ¥¶À£¨x+48£©ÌìºÈÍê1°ü²èÒ¶£¬ÔòÿÌìºÈµÄ²èҶΪ
£®
£»
½âµÃx=12»òx=-40£¨ÉáÈ¥£©£¬
¾¼ìÑ飬x=12ÊÇÔ·½³ÌµÄ½â£¬
¡àx+48=60£®
´ð£º¼×µ¥¶À12ÌìºÈÍê1°ü²èÒ¶£¬ÒÒµ¥¶À60ÌìºÈÍê1°ü²èÒ¶£»
£¨2£©¼×µ¥¶ÀºÈÒ»¹Þ¿§·ÈµÄʱ¼äΪ£º1÷£¨
£©=30Ì죻
¡à30Ììºó¼×ºÈÍ꿧·È¶øÒÒÖ»ºÈÍê²èÒ¶µÄÒ»°ë£¬¹ÊʣϵIJèÒ¶±ä³ÉÁ½È˺Ϻȣ¬
ÓÉÌâÒâ¿ÉÖª£¬ËûÃÇÁ½ÈË»¹ÄܺÈ5Ì죮
¡àÁ½ÈË35Ìì²ÅÈ«²¿ºÈÍ꣮
µãÆÀ£º¿¼²é·Öʽ·½³ÌµÄÓ¦Ó㻵õ½¼×ÒҺͺÈÍê²èÒ¶µÄ¹¤×÷Á¿µÄµÈÁ¿¹ØϵÊǽâ¾ö±¾ÌâµÄ¹Ø¼ü£®
¿ÆÄ¿£º³õÖÐÊýѧ
À´Ô´£º2012ÄêÕã½Ê¡ºþÖÝÊÐÀ×µéÖÐѧÖп¼ÊýѧģÄâÊÔ¾í£¨½âÎö°æ£©
ÌâÐÍ£º½â´ðÌâ
¼×ϲ»¶ºÈÎ÷ºþÁú¾®²è£¬ÒÒϲ»¶ºÈ¿§·È£®1°üÎ÷ºþÁú¾®²èÒ¶£¬¼×¡¢ÒÒÁ½ÈËÒ»ÆðºÈ10ÌìºÈÍ꣬¼×µ¥¶ÀºÈÔò±ÈÒÒµ¥¶ÀºÈ¿ì48ÌìºÈÍꣻ 1¹Þ¿§·È£¬¼×¡¢ÒÒÁ½ÈËÒ»ÆðºÈ12ÌìºÈÍ꣬ÒÒµ¥¶ÀºÈÔòÐè20ÌìºÈÍ꣮
£¨1£©¼×¡¢ÒÒµ¥¶ÀºÈÍê1°ü²èÒ¶¸÷Ðè¶àÉÙÌ죿
£¨2£©¼ÙÈçÏÖÔÚÈü׵¥¶ÀÏȺȿ§·È£¬¶øÈÃÒÒµ¥¶ÀÏȺȲ裬¼×ÔÚÓп§·ÈµÄÇé¿öϾö²»ÄܺÈ×Ô¼ºÏ²»¶µÄ²è£¬¶øÒÒÔÚÓвèÒ¶µÄÇé¿öϾö²»ÄܺÈ×Ô¼ºÏ²»¶µÄ¿§·È£¬ÎÊÁ½ÈËÒ»ÆðºÈÍê1°ü²èÒ¶ºÍ1¹Þ¿§·ÈÐèÒª¶àÉÙÌ죿
²é¿´´ð°¸ºÍ½âÎö>>
¿ÆÄ¿£º³õÖÐÊýѧ
À´Ô´£º2011ÄêÕã½Ê¡º¼ÖÝÊÐÓຼÇøÁ¼ä¾ÖÐѧÖп¼ÊýѧģÄâÊÔ¾í£¨Î⽨µÂ£©£¨½âÎö°æ£©
ÌâÐÍ£º½â´ðÌâ
¼×ϲ»¶ºÈÎ÷ºþÁú¾®²è£¬ÒÒϲ»¶ºÈ¿§·È£®1°üÎ÷ºþÁú¾®²èÒ¶£¬¼×¡¢ÒÒÁ½ÈËÒ»ÆðºÈ10ÌìºÈÍ꣬¼×µ¥¶ÀºÈÔò±ÈÒÒµ¥¶ÀºÈ¿ì48ÌìºÈÍꣻ 1¹Þ¿§·È£¬¼×¡¢ÒÒÁ½ÈËÒ»ÆðºÈ12ÌìºÈÍ꣬ÒÒµ¥¶ÀºÈÔòÐè20ÌìºÈÍ꣮
£¨1£©¼×¡¢ÒÒµ¥¶ÀºÈÍê1°ü²èÒ¶¸÷Ðè¶àÉÙÌ죿
£¨2£©¼ÙÈçÏÖÔÚÈü׵¥¶ÀÏȺȿ§·È£¬¶øÈÃÒÒµ¥¶ÀÏȺȲ裬¼×ÔÚÓп§·ÈµÄÇé¿öϾö²»ÄܺÈ×Ô¼ºÏ²»¶µÄ²è£¬¶øÒÒÔÚÓвèÒ¶µÄÇé¿öϾö²»ÄܺÈ×Ô¼ºÏ²»¶µÄ¿§·È£¬ÎÊÁ½ÈËÒ»ÆðºÈÍê1°ü²èÒ¶ºÍ1¹Þ¿§·ÈÐèÒª¶àÉÙÌ죿
²é¿´´ð°¸ºÍ½âÎö>>