ÌâÄ¿ÄÚÈÝ
ΪÁ˽âÎÒУ³õÖÐÈýÄ꼶300ÃûÄÐÉúµÄÉíÌå·¢ÓýÇé¿ö£¬´ÓÖгé²âÁ˲¿·ÖÄÐÉúµÄÉí¸ß½øÐзÖÎö£¬Çë¸ù¾ÝÏÂÃæ¸ø³öµÄƵÂÊ·Ö²¼±íÖÐÌṩµÄÐÅÏ¢£¬½â´ðÏÂÁÐÎÊÌ⣺
·Ö×飨cm£© | ƵÊý | ƵÂÊ |
156.5¡«161.5 | 2 | a |
161.5¡«166.5 | 3 | 0.15 |
166.5¡«171.5 | b | 0.20 |
171.5¡«176.5 | c | 0.30 |
176.5¡«181.5 | 5 | d |
£¨2£©±íÖÐa=______£¬b=______£¬c=______£¬d=______£»
£¨3£©¹À¼Æ¼«²îΪ______£»
£¨4£©¸ÃУ³õÖÐÈýÄ꼶ÄÐÉúÉí¸ßÔÚ171.5¡«176.5£¨cm£©·¶Î§ÄÚµÄÈËÊýΪ______£»
£¨5£©¹À¼ÆÕâ¸öÑù±¾µÄÄÐÉúµÄƽ¾ùÉí¸ß£®
½â£º£¨1£©Õâ´Î¹²³é²éµÄÄÐÉúÈËÊý=3¡Â0.15=20£¨ÈË£©£»
¹ÊÌî20£®
£¨2£©±íÖÐa=2¡Â20=0.1£¬b=20¡Á0.2=4£¬c=20¡Á0.3=6£¬d=5¡Â20=0.25£»
¹ÊÌî0.1£¬4£¬6£¬0.25£®
£¨3£©¹À¼Æ¼«²î=181-157=24£»
¹ÊÌî24£®
£¨4£©¸ÃУ³õÖÐÈýÄ꼶ÄÐÉúÉí¸ßÔÚ171.5¡«176.5£¨cm£©·¶Î§ÄÚµÄÈËÊýΪ300¡Á0.3=75£®
¹ÊÌî75£®
£¨5£©¹À¼ÆÕâ¸öÑù±¾µÄÄÐÉúµÄƽ¾ùÉí¸ß==171.25£¨cm£©£®
·ÖÎö£º£¨1£©¸ù¾ÝƵÂÊ·Ö²¼±íÖиÃУ³õÖÐÈýÄ꼶ÄÐÉúÉí¸ßÔÚ171.5¡«176.5£¨cm£©·¶Î§ÄÚµÄƵÊýÓëƵÂÊ¿ÉÖª¹²³é²éµÄÄÐÉúÈËÊý£»
£¨2£©¸ù¾ÝƵÊý=Êý¾Ý×ÜÊý¡ÁƵÂÊ£¬¼ÆËã³öƵÊýb¡¢c£¬¸ù¾ÝƵÂÊ=ƵÊý¡Â×ÜÊý£¬¼ÆËã³öƵÂÊa¡¢d£»
£¨3£©Ò»×éÊý¾ÝÖеÄ×î´óÊý¾ÝÓë×îСÊý¾ÝµÄ²î½Ð×öÕâ×éÊý¾ÝµÄ¼«²î£®
£¨4£©ÔÚ±íÖУ¬Éí¸ßÔÚ171.5¡«176.5£¨cm£©·¶Î§ÄÚµÄƵÊýΪ6£¬¿ÉÖª¸ÃУ³õÖÐÈýÄ꼶ÄÐÉúÉí¸ßÔÚ171.5¡«176.5£¨cm£©·¶Î§ÄÚµÄÈËÊý£»
£¨5£©ÒªÇóÕâ¸öÑù±¾µÄÄÐÉúµÄƽ¾ùÉí¸ß£¬¿ÉÒÔȡÿһС×éÖмäµÄÊýÖµ½üËƵØ×÷Ϊ¸Ã×éÄÚÿλÄÐÉúµÄÉí¸ß£¬ÔÙÓÃÇóƽ¾ùÊýµÄ·½·¨Çó½â£»
µãÆÀ£º±¾Ì⿼²éÀûÓÃͳ¼Æͼ»ñÈ¡ÐÅÏ¢µÄÄÜÁ¦£®ÀûÓÃͳ¼Æͼ»ñÈ¡ÐÅϢʱ£¬±ØÐëÈÏÕæ¹Û²ì¡¢·ÖÎö¡¢Ñо¿Í³¼Æͼ£¬²ÅÄÜ×÷³öÕýÈ·µÄÅжϺͽâ¾öÎÊÌ⣮Óõ½µÄ֪ʶµã£ºÆµÊý=ƵÂÊ¡Á×ÜÊý£¬ÆµÂÊ=ƵÊý¡Â×ÜÊý£¬¼°¼«²îµÄ¶¨Ò壮
¹ÊÌî20£®
£¨2£©±íÖÐa=2¡Â20=0.1£¬b=20¡Á0.2=4£¬c=20¡Á0.3=6£¬d=5¡Â20=0.25£»
¹ÊÌî0.1£¬4£¬6£¬0.25£®
£¨3£©¹À¼Æ¼«²î=181-157=24£»
¹ÊÌî24£®
£¨4£©¸ÃУ³õÖÐÈýÄ꼶ÄÐÉúÉí¸ßÔÚ171.5¡«176.5£¨cm£©·¶Î§ÄÚµÄÈËÊýΪ300¡Á0.3=75£®
¹ÊÌî75£®
£¨5£©¹À¼ÆÕâ¸öÑù±¾µÄÄÐÉúµÄƽ¾ùÉí¸ß==171.25£¨cm£©£®
·ÖÎö£º£¨1£©¸ù¾ÝƵÂÊ·Ö²¼±íÖиÃУ³õÖÐÈýÄ꼶ÄÐÉúÉí¸ßÔÚ171.5¡«176.5£¨cm£©·¶Î§ÄÚµÄƵÊýÓëƵÂÊ¿ÉÖª¹²³é²éµÄÄÐÉúÈËÊý£»
£¨2£©¸ù¾ÝƵÊý=Êý¾Ý×ÜÊý¡ÁƵÂÊ£¬¼ÆËã³öƵÊýb¡¢c£¬¸ù¾ÝƵÂÊ=ƵÊý¡Â×ÜÊý£¬¼ÆËã³öƵÂÊa¡¢d£»
£¨3£©Ò»×éÊý¾ÝÖеÄ×î´óÊý¾ÝÓë×îСÊý¾ÝµÄ²î½Ð×öÕâ×éÊý¾ÝµÄ¼«²î£®
£¨4£©ÔÚ±íÖУ¬Éí¸ßÔÚ171.5¡«176.5£¨cm£©·¶Î§ÄÚµÄƵÊýΪ6£¬¿ÉÖª¸ÃУ³õÖÐÈýÄ꼶ÄÐÉúÉí¸ßÔÚ171.5¡«176.5£¨cm£©·¶Î§ÄÚµÄÈËÊý£»
£¨5£©ÒªÇóÕâ¸öÑù±¾µÄÄÐÉúµÄƽ¾ùÉí¸ß£¬¿ÉÒÔȡÿһС×éÖмäµÄÊýÖµ½üËƵØ×÷Ϊ¸Ã×éÄÚÿλÄÐÉúµÄÉí¸ß£¬ÔÙÓÃÇóƽ¾ùÊýµÄ·½·¨Çó½â£»
µãÆÀ£º±¾Ì⿼²éÀûÓÃͳ¼Æͼ»ñÈ¡ÐÅÏ¢µÄÄÜÁ¦£®ÀûÓÃͳ¼Æͼ»ñÈ¡ÐÅϢʱ£¬±ØÐëÈÏÕæ¹Û²ì¡¢·ÖÎö¡¢Ñо¿Í³¼Æͼ£¬²ÅÄÜ×÷³öÕýÈ·µÄÅжϺͽâ¾öÎÊÌ⣮Óõ½µÄ֪ʶµã£ºÆµÊý=ƵÂÊ¡Á×ÜÊý£¬ÆµÂÊ=ƵÊý¡Â×ÜÊý£¬¼°¼«²îµÄ¶¨Ò壮
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿
ΪÁ˽âÎÒУ³õÖÐÈýÄ꼶300ÃûÄÐÉúµÄÉíÌå·¢ÓýÇé¿ö£¬´ÓÖгé²âÁ˲¿·ÖÄÐÉúµÄÉí¸ß½øÐзÖÎö£¬Çë¸ù¾ÝÏÂÃæ¸ø³öµÄƵÂÊ·Ö²¼±íÖÐÌṩµÄÐÅÏ¢£¬½â´ðÏÂÁÐÎÊÌ⣺
£¨1£©Õâ´Î¹²³é²éÁË ÃûÄÐÉú£»
£¨2£©±íÖÐa= £¬b= £¬c= £¬d= £»
£¨3£©¹À¼Æ¼«²îΪ £»
£¨4£©¸ÃУ³õÖÐÈýÄ꼶ÄÐÉúÉí¸ßÔÚ171.5¡«176.5£¨cm£©·¶Î§ÄÚµÄÈËÊýΪ £»
£¨5£©¹À¼ÆÕâ¸öÑù±¾µÄÄÐÉúµÄƽ¾ùÉí¸ß£®
·Ö×飨cm£© | ƵÊý | ƵÂÊ |
156.5¡«161.5 | 2 | a |
161.5¡«166.5 | 3 | 0.15 |
166.5¡«171.5 | b | 0.20 |
171.5¡«176.5 | c | 0.30 |
176.5¡«181.5 | 5 | d |
£¨2£©±íÖÐa=
£¨3£©¹À¼Æ¼«²îΪ
£¨4£©¸ÃУ³õÖÐÈýÄ꼶ÄÐÉúÉí¸ßÔÚ171.5¡«176.5£¨cm£©·¶Î§ÄÚµÄÈËÊýΪ
£¨5£©¹À¼ÆÕâ¸öÑù±¾µÄÄÐÉúµÄƽ¾ùÉí¸ß£®
ΪÁ˽âÎÒУ³õÖÐÈýÄ꼶300ÃûÄÐÉúµÄÉíÌå·¢ÓýÇé¿ö£¬´ÓÖгé²âÁ˲¿·ÝÄÐÉúµÄÉí¸ß½øÐзÖÎö£¬Çë¸ù¾ÝÏÂÃæ¸ø³öµÄƵÂÊ·Ö²¼±íÖÐÌṩµÄÐÅÏ¢£¬½â´ðÏÂÁÐÎÊÌ⣺
·Ö×飨cm£© | ƵÊý | ƵÂÊ |
156.5¡«161.5 | 2 | a |
161.5¡«166.5 | 3 | 0.15 |
166.5¡«171.5 | b | 0.20 |
171.5¡«176.5 | c | 0.30 |
176.5¡«181.5 | 5 | d |
£¨2£©±íÖÐa=______£¬b=______£¬c=______£¬d=______£»
£¨3£©¹À¼Æ¼«²îµÄ·¶Î§Îª______£»
£¨4£©ÔÚÕâ´ÎÉýѧ¿¼ÊÔÖУ¬ÎÒУ³õÈýÄ꼶ÄÐÉúÉí¸ßÔÚ166.5¡«171.5·¶Î§ÄÚµÄÈËÊýԼΪ______¶àÉÙÈË£®