ÌâÄ¿ÄÚÈÝ

¡¾ÌâÄ¿¡¿ÎªÁËÁ˽âȫУ2400ÃûѧÉúµÄÔĶÁÐËȤ£¬´ÓÖÐËæ»ú³é²éÁ˲¿·Öͬѧ£¬¾Í¡°ÎÒ×î¸ÐÐËȤµÄÊé¼®¡±½øÐÐÁ˵÷²é£ºA.С˵¡¢B.É¢ÎÄ¡¢C.¿ÆÆÕ¡¢D.ÆäËû£¨Ã¿¸öͬѧֻÄÜÑ¡ÔñÒ»Ï£¬½øÐÐÁËÏà¹Øͳ¼Æ£¬ÕûÀí²¢»æÖƳöÁ½·ù²»ÍêÕûµÄͳ¼Æͼ£¬ÇëÄã¸ù¾Ýͳ¼ÆͼÌṩµÄÐÅÏ¢£¬½â´ðÏÂÁÐÎÊÌ⣺

£¨1£©±¾´Î³é²éÖУ¬Ñù±¾ÈÝÁ¿Îª______£»

£¨2£©a£½______£¬b£½______£»

£¨3£©ÉÈÐÎͳ¼ÆͼÖУ¬ÆäËûÀàÊé¼®ËùÔÚÉÈÐεÄÔ²ÐĽÇÊÇ______¡ã£»

£¨4£©Çë¸ù¾ÝÑù±¾Êý¾Ý£¬¹À¼ÆȫУÓжàÉÙÃûѧÉú¶ÔÉ¢ÎĸÐÐËȤ£®

¡¾´ð°¸¡¿£¨1£©50£»£¨2£©6£¬15£»£¨3£©72£»£¨4£©288.

¡¾½âÎö¡¿£¨1£©¸ù¾ÝС˵ÓÐ19ÈËÕ¼±ÈΪ38%¼´¿ÉÇóµÃÑù±¾ÈÝÁ¿£»

£¨2£©ÓÃÑù±¾ÈÝÁ¿³ËÒÔ¿ÆÆյıȿÉÇóµÃbµÄÖµ£¬ÔÙÓÃÑù±¾ÈÝÁ¿¼õȥС˵¡¢¿ÆÆÕ¡¢ÆäËûµÄÈËÊý¼´¿ÉÇóµÃaµÄÖµ£»

£¨3£©ÓÃÆäËûËùÕ¼µÄ±È³ËÒÔ360¶È¼´¿ÉµÃ£»

£¨4£©ÓÃ2400³ËÒÔϲ»¶É¢ÎÄÀàËùÕ¼µÄ±ÈÀý¼´¿ÉµÃ.

£¨1£©Ñù±¾ÈÝÁ¿Îª£º19¡Â38%=50£¬

¹Ê´ð°¸Îª£º50£»

£¨2£©b=50¡Á30%=15£¬

a=50-19-15-10=6£¬

¹Ê´ð°¸Îª£º6£¬15£»

£¨3£©ÆäËûÀàÊé¼®ËùÔÚÉÈÐεÄÔ²ÐĽÇΪ£º=72¡ã£¬

¹Ê´ð°¸Îª£º72£»

£¨4£©¹À¼ÆȫУ¶ÔÉ¢ÎĸÐÐËȤµÄѧÉúÔ¼ÓУº=288ÈË.

Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿

Î¥·¨ºÍ²»Á¼ÐÅÏ¢¾Ù±¨µç»°£º027-86699610 ¾Ù±¨ÓÊÏ䣺58377363@163.com

¾«Ó¢¼Ò½ÌÍø