六年级参加数学兴趣小组的共有46人,其中女生人数的五分之四是男生人数的三分之二倍,参加兴趣小组的男 六年级参加数学班的有46人,其中女生人数的五分之四是男生人数...
.\u516d\u5e74\u7ea7\u53c2\u52a0\u6570\u5b66\u5174\u8da3\u5c0f\u7ec4\u7684\u5171\u670946,\u5176\u4e2d\u5973\u751f\u4eba\u6570\u76844/5\u662f\u7537\u751f\u4eba\u6570\u76843/2\u500d,\u53c2\u52a0\u5174\u8da3\u5c0f\u7ec4\u7684\u7537\u3001\u5973\u751f\u5404\u591a\u5c11\u4eba?\u7537\u5973\u751f\u4eba\u6570\u6bd4\u662f\uff1a4/5\uff1a3/2=8\uff1a15
\u7537\u751f\u4eba\u6570\uff1a46/\uff088+15\uff09*8=16\u4eba
\u5973\u751f\u4eba\u657046-16=30\u4eba
\u5e94\u8be5\u662f\u53c2\u52a0\u8fd9\u4e2a\u73ed\u7684\u7537,\u5973\u5404\u51e0\u4eba
\u5973\u751f\u4eba\u6570\u662f\u7537\u751f\u4eba\u6570\u7684
1\u53c82\u5206\u4e4b1\u00f75\u5206\u4e4b4
=2\u5206\u4e4b3\u00d74\u5206\u4e4b5
=8\u5206\u4e4b15
\u7537\u751f\u4eba\u6570\u4e3a\uff1a
46\u00f7\uff081+8\u5206\u4e4b15\uff09
=46\u00f78\u5206\u4e4b23
=46\u00d723\u5206\u4e4b8
=16\uff08\u4eba\uff09
\u5973\u751f\uff1a
46-16=30\uff08\u4eba\uff09
绛旓細15.鍏勾绾у弬鍔犳暟瀛﹀叴瓒e皬缁勭殑鍏辨湁46,鍏朵腑濂崇敓浜烘暟鐨4/5鏄敺鐢熶汉鏁扮殑3/2鍊,鍙傚姞鍏磋叮灏忕粍鐨勭敺銆佸コ鐢熷悇鏈夊灏戜汉? 鐢峰コ鐢熶汉鏁版瘮鏄:4/5:3/2=8:15 鐢风敓浜烘暟:46/(8+15)*8=16浜 濂崇敓浜烘暟46-16=30浜 16.寮犵孩鎶勫啓涓浠界浠,闇瑕5灏忔椂鎶勫畬.杩欎唤绋夸欢宸茬敱鍒汉鎶勪簡1/3,鍓╀笅鐨勪氦缁欏紶绾㈡妱,杩樿鐢ㄥ嚑灏忔椂鎵嶈兘鎶...
绛旓細15.鍏勾绾у弬鍔犳暟瀛﹀叴瓒e皬缁勭殑鍏辨湁46,鍏朵腑濂崇敓浜烘暟鐨4/5鏄敺鐢熶汉鏁扮殑3/2鍊,鍙傚姞鍏磋叮灏忕粍鐨勭敺銆佸コ鐢熷悇鏈夊灏戜汉? 鐢峰コ鐢熶汉鏁版瘮鏄:4/5:3/2=8:15 鐢风敓浜烘暟:46/(8+15)*8=16浜 濂崇敓浜烘暟46-16=30浜 16.寮犵孩鎶勫啓涓浠界浠,闇瑕5灏忔椂鎶勫畬.杩欎唤绋夸欢宸茬敱鍒汉鎶勪簡1/3,鍓╀笅鐨勪氦缁欏紶绾㈡妱,杩樿鐢ㄥ嚑灏忔椂鎵嶈兘鎶...
绛旓細15.鍏勾绾у弬鍔犳暟瀛﹀叴瓒e皬缁勭殑鍏辨湁46,鍏朵腑濂崇敓浜烘暟鐨4/5鏄敺鐢熶汉鏁扮殑3/2鍊,鍙傚姞鍏磋叮灏忕粍鐨勭敺銆佸コ鐢熷悇鏈夊灏戜汉? 鐢峰コ鐢熶汉鏁版瘮鏄:4/5:3/2=8:15 鐢风敓浜烘暟:46/(8+15)*8=16浜 濂崇敓浜烘暟46-16=30浜 16.寮犵孩鎶勫啓涓浠界浠,闇瑕5灏忔椂鎶勫畬.杩欎唤绋夸欢宸茬敱鍒汉鎶勪簡1/3,鍓╀笅鐨勪氦缁欏紶绾㈡妱,杩樿鐢ㄥ嚑灏忔椂鎵嶈兘鎶...
绛旓細15.鍏勾绾у弬鍔犳暟瀛﹀叴瓒e皬缁勭殑鍏辨湁46,鍏朵腑濂崇敓浜烘暟鐨4/5鏄敺鐢熶汉鏁扮殑3/2鍊,鍙傚姞鍏磋叮灏忕粍鐨勭敺銆佸コ鐢熷悇鏈夊灏戜汉?鐢峰コ鐢熶汉鏁版瘮鏄:4/5:3/2=8:15鐢风敓浜烘暟:46/(8+15)*8=16浜哄コ鐢熶汉鏁46-16=30浜16.寮犵孩鎶勫啓涓浠界浠,闇瑕5灏忔椂鎶勫畬.杩欎唤绋夸欢宸茬敱鍒汉鎶勪簡1/3,鍓╀笅鐨勪氦缁欏紶绾㈡妱,杩樿鐢ㄥ嚑灏忔椂鎵嶈兘鎶勫畬?(1...
绛旓細15.鍏勾绾у弬鍔犳暟瀛﹀叴瓒e皬缁勭殑鍏辨湁46,鍏朵腑濂崇敓浜烘暟鐨4/5鏄敺鐢熶汉鏁扮殑3/2鍊,鍙傚姞鍏磋叮灏忕粍鐨勭敺銆佸コ鐢熷悇鏈夊灏戜汉?鐢峰コ鐢熶汉鏁版瘮鏄:4/5:3/2=8:15鐢风敓浜烘暟:46/(8+15)*8=16浜哄コ鐢熶汉鏁46-16=30浜16.寮犵孩鎶勫啓涓浠界浠,闇瑕5灏忔椂鎶勫畬.杩欎唤绋夸欢宸茬敱鍒汉鎶勪簡1/3,鍓╀笅鐨勪氦缁欏紶绾㈡妱,杩樿鐢ㄥ嚑灏忔椂鎵嶈兘鎶勫畬?(1...
绛旓細鍘熸潵濂崇敓鏄敺鐢熺殑锛3/4梅(1-3/4)=4锛堝嶏級鐜板湪濂崇敓鏄敺鐢熺殑锛5/6梅(1-5/6)=5锛堝嶏級鐢风敓浜烘暟锛4梅(5-4)=4锛堜汉锛夊師鏉ユ讳汉鏁帮細4梅(1-3/4)=16锛堜汉锛
绛旓細15.鍏勾绾у弬鍔犳暟瀛﹀叴瓒e皬缁勭殑鍏辨湁46,鍏朵腑濂崇敓浜烘暟鐨4/5鏄敺鐢熶汉鏁扮殑3/2鍊,鍙傚姞鍏磋叮灏忕粍鐨勭敺銆佸コ鐢熷悇鏈夊灏戜汉? 鐢峰コ鐢熶汉鏁版瘮鏄:4/5:3/2=8:15 鐢风敓浜烘暟:46/(8+15)*8=16浜 濂崇敓浜烘暟46-16=30浜 涓嶈兘淇濊瘉姣忕10閬,浣嗚偗瀹氭瘮杈冮綈鍏,涓嬫鏈変簨鍐嶆壘濮愬鍟娿傘傘侽(鈭鈭)O~ 鏈洖绛旂敱鎻愰棶鑰呮帹鑽 宸茶禐...
绛旓細65.鍏勾绾у弬鍔犳暟瀛﹀叴瓒e皬缁勭殑鍏辨湁46,鍏朵腑濂崇敓浜烘暟鐨4/5鏄敺鐢熶汉鏁扮殑3/2鍊,鍙傚姞鍏磋叮灏忕粍鐨勭敺銆佸コ鐢熷悇鏈夊灏戜汉? 66.寮犵孩鎶勫啓涓浠界浠,闇瑕5灏忔椂鎶勫畬.杩欎唤绋夸欢宸茬敱鍒汉鎶勪簡1/3,鍓╀笅鐨勪氦缁欏紶绾㈡妱,杩樿鐢ㄥ嚑灏忔椂鎵嶈兘鎶勫畬? 67.涓ゅ垪鐏溅鍚屾椂浠庣浉璺600鍗冪背鐨勪袱鍩庣浉瀵瑰紑鍑.鍒楃伀杞︽瘡灏忔椂琛60鍗冪背,鍙︿竴鍒楃伀杞︽瘡...
绛旓細=530/0.4 =1325(km)15.鍏勾绾у弬鍔犳暟瀛﹀叴瓒e皬缁勭殑鍏辨湁46,鍏朵腑濂崇敓浜烘暟鐨4/5鏄敺鐢熶汉鏁扮殑3/2鍊,鍙傚姞鍏磋叮灏忕粍鐨勭敺銆佸コ鐢熷悇鏈夊灏戜汉锛熺敺濂崇敓浜烘暟姣旀槸锛4/5锛3/2=8锛15 鐢风敓浜烘暟锛46/锛8+15锛*8=16浜 濂崇敓浜烘暟46-16=30浜 16.寮犵孩鎶勫啓涓浠界浠,闇瑕5灏忔椂鎶勫畬.杩欎唤绋夸欢宸茬敱鍒汉鎶勪簡1/3,...
绛旓細65.鍏勾绾у弬鍔犳暟瀛﹀叴瓒e皬缁勭殑鍏辨湁46,鍏朵腑濂崇敓浜烘暟鐨4/5鏄敺鐢熶汉鏁扮殑3/2鍊,鍙傚姞鍏磋叮灏忕粍鐨勭敺銆佸コ鐢熷悇鏈夊灏戜汉? 66.寮犵孩鎶勫啓涓浠界浠,闇瑕5灏忔椂鎶勫畬.杩欎唤绋夸欢宸茬敱鍒汉鎶勪簡1/3,鍓╀笅鐨勪氦缁欏紶绾㈡妱,杩樿鐢ㄥ嚑灏忔椂鎵嶈兘鎶勫畬? 67.涓ゅ垪鐏溅鍚屾椂浠庣浉璺600鍗冪背鐨勪袱鍩庣浉瀵瑰紑鍑.鍒楃伀杞︽瘡灏忔椂琛60鍗冪背,鍙︿竴鍒楃伀杞︽瘡...