ÌâÄ¿ÄÚÈÝ
¡¾ÌâÄ¿¡¿ÖÐÑëµçÊǪ́µÄ¡°ÀʶÁÕß¡±½ÚÄ¿¼¤·¢ÁËͬѧÃǵĶÁÊéÈÈÇ飬ΪÁËÒýµ¼Ñ§Éú¡°¶à¶ÁÊ飬¶ÁºÃÊ顱£¬Ä³Ð£¶Ô°ËÄ꼶²¿·ÖѧÉúµÄ¿ÎÍâÔĶÁÁ¿½øÐÐÁËËæ»úµ÷²é£¬ÕûÀíµ÷²é½á¹û·¢ÏÖ£¬Ñ§Éú¿ÎÍâÔĶÁµÄ±¾Êý×îÉÙµÄÓÐ5±¾£¬×î¶àµÄÓÐ8±¾£¬²¢¸ù¾Ýµ÷²é½á¹û»æÖÆÁ˲»ÍêÕûµÄͼ±í£º
±¾Êý£¨±¾£© | ÈËÊý£¨ÈËÊý£© | °Ù·Ö±È |
5 | a | 0.2 |
6 | 18 | 0.36 |
7 | 14 | b |
8 | 8 | 0.16 |
ºÏ¼Æ | c | 1 |
¸ù¾ÝÒÔÉÏÌṩµÄÐÅÏ¢£¬½â´ðÏÂÁÐÎÊÌ⣺
£¨1£©a£½_____£¬b£½_____£¬c£½______£»
£¨2£©²¹È«ÉÏÃæµÄÌõÐÎͳ¼Æͼ£»
£¨3£©Èô¸ÃУ°ËÄ꼶¹²ÓÐ1200ÃûѧÉú£¬ÇëÄã·ÖÎö¸ÃУ°ËÄ꼶ѧÉú¿ÎÍâÔĶÁ7±¾¼°ÒÔÉϵÄÓжàÉÙÃû£¿
¡¾´ð°¸¡¿£¨1£©10£¬0.28£¬50£»£¨2£©²¹Í¼¼û½âÎö£»£¨3£©¸ÃУ°ËÄ꼶ѧÉú¿ÎÍâÔĶÁ7±¾¼°ÒÔÉϵÄÓÐ528Ãû£®
¡¾½âÎö¡¿
£¨1£©¸ù¾Ýͳ¼ÆͼºÍ±í¸ñÖеÄÊý¾Ý¿ÉÒԵõ½a¡¢b¡¢cµÄÖµ£»
£¨2£©¸ù¾Ý£¨1£©ÖÐaµÄÖµ£¬¿ÉÒÔ½«ÌõÐÎͳ¼Æͼ²¹³äÍêÕû£»
£¨3£©¸ù¾Ýͳ¼ÆͼÖеÄÊý¾Ý¿ÉÒÔÇóµÃ¸ÃУ°ËÄ꼶ѧÉú¿ÎÍâÔĶÁ7±¾¼°ÒÔÉϵÄÓжàÉÙÃû£®
½â£º£¨1£©±¾´Îµ÷²éµÄѧÉúÓУº18¡Â0.36£½50£¨ÈË£©£¬
a£½50¡Á0.2£½10£¬
b£½14¡Â50£½0.28£¬
c£½50£¬
¹Ê´ð°¸Îª£º10¡¢0.28¡¢50£»
£¨2£©ÓÉ£¨1£©Öª£¬a£½10£¬
²¹È«µÄÌõÐÎͳ¼ÆͼÈçͼËùʾ£»
£¨3£©¡ß1200¡Á£¨0.28+0.16£©£½528£¨Ãû£©£¬
¡à¸ÃУ°ËÄ꼶ѧÉú¿ÎÍâÔĶÁ7±¾¼°ÒÔÉϵÄÓÐ528Ãû£®