¼×¡¢ÒÒÁ½×鹤ÈËͬʱ¼Ó¹¤Ä³ÖÖÁã¼þ£¬ÒÒ×鹤×÷ÖÐÓÐÒ»´ÎÍ£²ú¸ü»»É豸£¬¸ü»»É豸ºó£¬ÒÒ×éµÄ¹¤×÷ЧÂÊÊÇÔ­À´µÄ2±¶£®Á½×é¸÷×Ô¼Ó¹¤Áã¼þµÄÊýÁ¿y£¨¼þ£©Óëʱ¼äx£¨Ê±£©µÄº¯ÊýͼÏóÈçͼËùʾ¡£
£¨1£©Çó¼××é¼Ó¹¤Áã¼þµÄÊýÁ¿yÓëʱ¼äxÖ®¼äµÄº¯Êý¹Øϵʽ£»
£¨2£©ÇóÒÒ×é¼Ó¹¤Áã¼þ×ÜÁ¿aµÄÖµ£»
£¨3£©¼×¡¢ÒÒÁ½×é¼Ó¹¤³öµÄÁã¼þºÏÔÚÒ»Æð×°Ï䣬ÿ¹»300¼þ×°Ò»Ï䣬Áã¼þ×°ÏäµÄʱ¼äºöÂÔ²»¼Æ£¬Çó¾­¹ý¶à³¤Ê±¼äÇ¡ºÃ×°ÂúµÚ1Ï䣿ÔÙ¾­¹ý¶à³¤Ê±¼äÇ¡ºÃ×°ÂúµÚ2Ï䣿
½â£º£¨1£©Éè¼××é¼Ó¹¤µÄÁã¼þÊýÁ¿yÓëʱ¼äxµÄº¯Êý¹ØϵʽΪy=kx£¬
¸ù¾ÝÌâÒ⣬µÃ6k=360£¬½âµÃk=60£¬  
ËùÒÔ£¬¼××é¼Ó¹¤µÄÁã¼þÊýÁ¿yÓëʱ¼äxµÄº¯Êý¹ØϵʽΪy=60x£»                
£¨2£©µ±x=2ʱ£¬y=100£¬
ÒòΪ¸ü»»É豸ºó£¬ÒÒ×鹤×÷ЧÂÊÊÇÔ­À´µÄ2±¶£¬ ËùÒÔ£¬£¬
½âµÃa=300£»
£¨3£©ÒÒ×é¸ü»»É豸ºó£¬ÒÒ×é¼Ó¹¤µÄÁã¼þµÄ¸öÊýyÓëʱ¼äxµÄº¯Êý¹ØϵʽΪ£¬
µ±0¡Üx¡Ü2ʱ£¬£¬½âµÃ£¬ÉáÈ¥£»
µ±2<x¡Ü2.8ʱ£¬£¬½âµÃ£¬ÉáÈ¥£»
µ±2.8<x¡Ü4.8ʱ£¬£¬½âµÃx=3£¬
ËùÒÔ£¬¾­¹ý3СʱǡºÃ×°ÂúµÚ1Ï䣬
µ±3<x¡Ü4.8ʱ£¬£¬½âµÃ£¬ÉáÈ¥£»
µ±4.8<x¡Ü6ʱ£¬£¬½âµÃx=5¡£
Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º³õÖÐÊýѧ À´Ô´£º ÌâÐÍ£º

¼×¡¢ÒÒÁ½×鹤ÈËͬʱ¼Ó¹¤Ä³ÖÖÁã¼þ£¬ÒÒ×鹤×÷ÖÐÓÐÒ»´ÎÍ£²ú¸ü»»É豸£¬¸ü»»É豸ºó£¬ÒÒ×éµÄ¹¤×÷ЧÂÊÊÇÔ­À´µÄ2±¶£®Á½×é¸÷×Ô¼Ó¹¤Áã¼þµÄÊýÁ¿y£¨¼þ£©Óëʱ¼äx£¨Ê±£©µÄº¯ÊýͼÏóÈçͼËùʾ£®
£¨1£©Çó¼××é¼Ó¹¤Áã¼þµÄÊýÁ¿yÓëʱ¼äxÖ®¼äµÄº¯Êý¹Øϵʽ£®
£¨2£©µ±x=2.8ʱ£¬¼×¡¢ÒÒÁ½×é¹²¼Ó¹¤Áã¼þ
268
268
¼þ£»ÒÒ×é¼Ó¹¤Áã¼þ×ÜÁ¿aµÄֵΪ
300
300
£®
£¨3£©¼Ó¹¤µÄÁã¼þÊý´ïµ½230¼þ×°Ò»Ï䣬Áã¼þ×°ÏäµÄʱ¼äºöÂÔ²»¼Æ£¬Èô¼×¡¢ÒÒÁ½×é¼Ó¹¤³öµÄÁã¼þºÏÔÚÒ»Æð×°Ï䣬µ±¼××鹤×÷¶à³¤Ê±¼äÇ¡ºÃ×°ÂúµÚ2Ï䣿

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÊýѧ À´Ô´£º ÌâÐÍ£º½â´ðÌâ

¼×¡¢ÒÒÁ½×鹤ÈËͬʱ¼Ó¹¤Ä³ÖÖÁã¼þ£¬ÒÒ×鹤×÷ÖÐÓÐÒ»´ÎÍ£²ú¸ü»»É豸£¬¸ü»»É豸ºó£¬ÒÒ×éµÄ¹¤×÷ЧÂÊÊÇÔ­À´µÄ2±¶£®Á½×é¸÷×Ô¼Ó¹¤Áã¼þµÄÊýÁ¿y£¨¼þ£©Óëʱ¼äx£¨Ê±£©µÄº¯ÊýͼÏóÈçͼËùʾ£®
£¨1£©Çó¼××é¼Ó¹¤Áã¼þµÄÊýÁ¿yÓëʱ¼äxÖ®¼äµÄº¯Êý¹Øϵʽ£®
£¨2£©µ±x=2.8ʱ£¬¼×¡¢ÒÒÁ½×é¹²¼Ó¹¤Áã¼þ______¼þ£»ÒÒ×é¼Ó¹¤Áã¼þ×ÜÁ¿aµÄֵΪ______£®
£¨3£©¼Ó¹¤µÄÁã¼þÊý´ïµ½230¼þ×°Ò»Ï䣬Áã¼þ×°ÏäµÄʱ¼äºöÂÔ²»¼Æ£¬Èô¼×¡¢ÒÒÁ½×é¼Ó¹¤³öµÄÁã¼þºÏÔÚÒ»Æð×°Ï䣬µ±¼××鹤×÷¶à³¤Ê±¼äÇ¡ºÃ×°ÂúµÚ2Ï䣿

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÊýѧ À´Ô´£º2013½ì½­ËÕÌ©ÐËÊаËÄ꼶ÉÏѧÆÚÆÚÄ©¿¼ÊÔÊýѧÊÔ¾í£¨½âÎö°æ£© ÌâÐÍ£º½â´ðÌâ

¼×¡¢ÒÒÁ½×鹤ÈËͬʱ¼Ó¹¤Ä³ÖÖÁã¼þ£¬ÒÒ×鹤×÷ÖÐÓÐÒ»´ÎÍ£²ú¸ü»»É豸£¬¸ü»»É豸ºó£¬ÒÒ×éµÄ¹¤×÷ЧÂÊÊÇÔ­À´µÄ2±¶£®Á½×é¸÷×Ô¼Ó¹¤Áã¼þµÄÊýÁ¿(¼þ)Óëʱ¼ä(ʱ)µÄº¯ÊýͼÏóÈçͼËùʾ£®

(1)Çó¼××é¼Ó¹¤Áã¼þµÄÊýÁ¿yÓëʱ¼äÖ®¼äµÄº¯Êý¹Øϵʽ£®(2·Ö)

(2)µ±x=2.8ʱ£¬¼×¡¢ÒÒÁ½×é¹²¼Ó¹¤Áã¼þ          ¼þ£»

ÒÒ×é¼Ó¹¤Áã¼þ×ÜÁ¿µÄֵΪ          £®(4·Ö)

(3) ¼Ó¹¤µÄÁã¼þÊý´ïµ½230¼þ×°Ò»Ï䣬Áã¼þ×°ÏäµÄʱ¼äºöÂÔ²»¼Æ£¬Èô¼×¡¢ÒÒÁ½×é¼Ó¹¤³öµÄÁã¼þºÏÔÚÒ»Æð×°Ï䣬µ±¼××鹤×÷¶à³¤Ê±¼äÇ¡ºÃ×°ÂúµÚ2Ï䣿 (2·Ö)

 

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÊýѧ À´Ô´£º2011-2012ѧÄêºþ±±ÌìÞÅÄ꼶±ÏÒµ¿¼ÊÔÊýѧÊÔ¾í£¨½âÎö°æ£© ÌâÐÍ£º½â´ðÌâ

¼×¡¢ÒÒÁ½×鹤ÈËͬʱ¼Ó¹¤Ä³ÖÖÁã¼þ£¬ÒÒ×鹤×÷ÖÐÓÐÒ»´ÎÍ£²ú¸ü»»É豸£¬¸ü»»É豸ºó£¬ÒÒ×éµÄ¹¤×÷ЧÂÊÊÇÔ­À´µÄ2±¶£®Á½×é¸÷×Ô¼Ó¹¤Áã¼þµÄÊýÁ¿(¼þ)Óëʱ¼ä(ʱ)µÄº¯ÊýͼÏóÈçͼËùʾ£®

1.Çó¼××é¼Ó¹¤Áã¼þµÄÊýÁ¿yÓëʱ¼äÖ®¼äµÄº¯Êý¹Øϵʽ£»£¨2·Ö£©

2.ÇóÒÒ×é¼Ó¹¤Áã¼þ×ÜÁ¿µÄÖµ£»£¨3·Ö£©

3.¼×¡¢ÒÒÁ½×é¼Ó¹¤³öµÄÁã¼þºÏÔÚÒ»Æð×°Ï䣬ÿ¹»300¼þ×°Ò»Ï䣬Áã¼þ×°ÏäµÄʱ¼äºöÂÔ²»¼Æ£¬Çó¾­¹ý¶à³¤Ê±¼äÇ¡ºÃ×°ÂúµÚ1Ï䣿ÔÙ¾­¹ý¶à³¤Ê±¼äÇ¡ºÃ×°ÂúµÚ2Ï䣿£¨5·Ö£©

 

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÊýѧ À´Ô´£º2011Äêºþ±±Ç±½­ÏÉÌÒÌìÃŽ­ººÓÍÌïÖп¼Êýѧ¾í ÌâÐÍ£º½â´ðÌâ

¼×¡¢ÒÒÁ½×鹤ÈËͬʱ¼Ó¹¤Ä³ÖÖÁã¼þ£¬ÒÒ×鹤×÷ÖÐÓÐÒ»´ÎÍ£²ú¸ü»»É豸£¬¸ü»»É豸

ºó£¬ÒÒ×éµÄ¹¤×÷ЧÂÊÊÇÔ­À´µÄ2±¶£®Á½×é¸÷×Ô¼Ó¹¤Áã¼þµÄÊýÁ¿(¼þ)Óëʱ¼ä(ʱ)µÄº¯Êýͼ

ÏóÈçͼËùʾ£®

£¨1£©Çó¼××é¼Ó¹¤Áã¼þµÄÊýÁ¿yÓëʱ¼äÖ®¼äµÄº¯Êý¹Øϵʽ£®£¨2·Ö£©

£¨2£©ÇóÒÒ×é¼Ó¹¤Áã¼þ×ÜÁ¿µÄÖµ£®£¨3·Ö£©

£¨3£©¼×¡¢ÒÒÁ½×é¼Ó¹¤³öµÄÁã¼þºÏÔÚÒ»Æð×°Ï䣬ÿ¹»300¼þ×°Ò»Ï䣬Áã¼þ×°ÏäµÄʱ¼äºöÂÔ²»¼Æ£¬Çó¾­¹ý¶à³¤Ê±¼äÇ¡ºÃ×°ÂúµÚ1Ï䣿ÔÙ¾­¹ý¶à³¤Ê±¼äÇ¡ºÃ×°ÂúµÚ2Ï䣿£¨5·Ö£©

 

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸