小学数学比例应用题,很简单哦,进来看看 小学六年级数学比例应用题
\u5c0f\u5b66\u6570\u5b66\u6bd4\u548c\u6bd4\u4f8b\u5e94\u7528\u9898\u30021.
\u89e3\u4e00\uff1a
\u6bcf\u4e2a\u4eba\u5e94\u6e05\u626b\u7684\u9762\u79ef\uff1a\uff0845\u00d718\uff09\u00f7\uff0826+28\uff09=15\u5e73\u65b9\u7c73/\u4eba
1\u73ed\u6e05\u626b\u9762\u79ef\uff1a15\u00d726=390\u5e73\u65b9\u7c73
2\u73ed\u6e05\u626b\u9762\u79ef\uff1a15\u00d728=420\u5e73\u65b9\u7c73 \u6216\u8005 45\u00d718-390=420\u5e73\u65b9\u7c73
\u89e3\u4e8c\uff1a
1\u73ed\u6e05\u626b\u9762\u79ef\uff1a26\u00f7\uff0826+28\uff09\u00d7\uff0845\u00d718\uff09=390\u5e73\u65b9\u7c73
2\u73ed\u6e05\u626b\u9762\u79ef\uff1a28\u00f7\uff0826+28\uff09\u00d7\uff0845\u00d718\uff09=420\u5e73\u65b9\u7c73
2.
\u4ee5\u524d\u603b\u4eba\u6570\uff1a48-3=45\u4eba
\u4ee5\u524d\u73ed\u91cc\u7537\u751f\u4eba\u6570\uff1a45\u00d7\uff085\u00f79\uff09=25\u4eba
\u73b0\u5728\u7537\u751f\u4eba\u6570\uff1a25+3=28\u4eba
3.
\u770b\u8d77\u6765\u6700\u7f8e\uff0c\u90a3\u4e48\u738b\u5973\u58eb\u4e0b\u80a2\u7406\u8bba\u957f\u5ea6\u5e94\u8be5\u662f\uff1a\uff08153\u00d70.618\uff09\u5398\u7c73
\u6240\u7a7f\u9ad8\u8ddf\u978b\u9ad8\u5ea6\uff1a\uff08153\u00d70.618-92\uff09\u22482.6\u5398\u7c73
1)\u6c34\u679c\u5e97\u4e00\u5929\u8fd0\u8fdb\u82f9\u679c\u3001\u9999\u8549\u3001\u68a8\u5171390\u5343\u514b\uff0c\u82f9\u679c\u7684\u91cd\u91cf\u662f\u68a8\u76841\uff0e5\u500d\uff0c\u9999\u8549\u7684\u91cd\u91cf\u662f\u68a8\u76843\uff0f4\uff0c\u4e09\u79cd\u6c34\u679c\u5404\u8fd0\u8fdb\u591a\u5c11\u5343\u514b\uff1f
(2)\u4e00\u7f38\u6c34\uff0c\u7528\u53bb1\uff0f2\u548c5\u6876\uff0c\u8fd8\u526930%\uff0c\u8fd9\u7f38\u6c34\u6709\u591a\u5c11\u6876\uff1f
(3)\u6709\u4e00\u5feb\u68f1\u957f20\u5398\u7c73\u7684\u6b63\u65b9\u4f53\u6728\u6599\uff0c\u5228\u6210\u4e00\u4e2a\u5e95\u9762\u76f4\u5f84\u6700\u5927\u7684\u5706\u67f1\u4f53\uff0c\u5228\u53bb\u6728\u6599\u7684\u4f53\u79ef\u662f\u591a\u5c11\uff1f
(4)\u4e00\u6839\u94a2\u7ba1\u957f10\u7c73\uff0c\u7b2c\u4e00\u6b21\u622a\u53bb\u5b83\u76847\uff0f10\uff0c\u7b2c\u4e8c\u6b21\u53c8\u622a\u53bb\u4f59\u4e0b\u76841\uff0f3\uff0c\u8fd8\u5269\u591a\u5c11\u7c73\uff1f
(5)\u4e24\u4e2a\u5c0f\u7ec4\u88c5\u914d\u6536\u97f3\u673a\uff0c\u7532\u7ec4\u6bcf\u5929\u88c5\u914d50\u53f0\uff0c\u7b2c\u4e00\u5929\u5b8c\u6210\u4e86\u603b\u4efb\u52a1\u768410%\uff0c\u8fd9\u65f6\u4e59\u7ec4\u624d\u5f00\u59cb\u88c5\u914d,\u6bcf\u5929\u88c5\u914d40\u53f0,\u5b8c\u6210\u8fd9\u6279\u4efb\u52a1\u65f6\uff0c\u7532\u7ec4\u505a\u4e86\u591a\u5c11\u5929\uff1f
(6)\u4fee\u7b51\u4e00\u6761\u516c\u8def\uff0c\u5b8c\u6210\u4e86\u5168\u957f\u76842\uff0f3\u540e,\u79bb\u4e2d\u70b916.5\u5343\u7c73\uff0c\u8fd9\u6761\u516c\u8def\u5168\u957f\u591a\u5c11\u5343\u7c73\uff1f
(7)\u5e08\u5f92\u4e24\u4eba\u5408\u505a\u4e00\u6279\u96f6\u4ef6\uff0c\u5f92\u5f1f\u505a\u4e86\u603b\u6570\u76842\uff0f7\uff0c\u6bd4\u5e08\u5085\u5c11\u505a21\u4e2a\uff0c\u8fd9\u6279\u96f6\u4ef6\u6709\u591a\u5c11\u4e2a\uff1f
(8)\u4e24\u961f\u4fee\u4e00\u6761\u516c\u8def\uff0c\u7532\u961f\u6bcf\u5929\u4fee\u5168\u957f\u76841\uff0f5\uff0c\u4e59\u961f\u72ec\u505a7\uff0e5\u5929\u4fee\u597d\u3002\u5982\u679c\u4e24\u961f\u5408\u4fee2\u5929\u540e\uff0c\u5176\u4f59\u7531\u4e59\u961f\u72ec\u4fee\uff0c\u8fd8\u8981\u51e0\u5929\u5b8c\u6210\uff1f
(9)\u4ed3\u5e93\u91cc\u6709\u4e00\u6279\u5316\u80a5\uff0c\u7b2c\u4e00\u6b21\u53d6\u51fa\u603b\u6570\u76842\uff0f5\uff0c\u7b2c\u4e8c\u6b21\u53d6\u51fa\u603b\u6570\u76841\uff0f3\u5c1112\u888b\uff0c\u8fd9\u65f6\u4ed3\u5e93\u91cc\u8fd8\u526924\u888b\uff0c\u4e24\u6b21\u5171\u53d6\u51fa\u591a\u5c11\u888b\uff1f
(10)\u524d\u8f6e\u5728720\u7c73\u7684\u8ddd\u79bb\u91cc\u6bd4\u540e\u8f6e\u591a\u8f6c40\u5468\uff0c\u5982\u679c\u540e\u8f6e\u7684\u5468\u957f\u662f2\u7c73\uff0c\u6c42\u524d\u8f6e\u7684\u5468\u957f\u3002
(11)\u7532\u6570\u662f\u7532\u4e59\u4e19\u4e09\u6570\u7684\u5e73\u5747\u6570\u76841\uff0e2\u500d\u3002\u5982\u679c\u4e59\u4e19\u4e24\u6570\u548c\u662f99\uff0c\u6c42\u7532\u6570\u662f\u591a\u5c11\uff1f
(12)\u6709\u4e00\u5de5\u7a0b\u8ba1\u5212\u7528\u5de5\u4eba800\u540d\uff0c\u9650100\u5929\u5b8c\u6210\u3002\u4e0d\u6599\u4ece\u5f00\u5de5\u8d77\uff0c\u505a35\u5929\u540e\u56e0\u4e8b\u6545\u505c\u5de5\uff0c\u505c\u5de525\u5929\u540e\u7ee7\u7eed\u5f00\u5de5\uff0c\u5982\u679c\u8981\u5728\u9650\u671f\u5185\u5b8c\u5de5\uff0c\u5e94\u589e\u52a0\u5de5\u4eba\u591a\u5c11\u540d\uff1f
(13)\u6c34\u679c\u5e97\u4ee52\u5143\u94b11\uff0e5\u5343\u514b\u7684\u4ef7\u683c\u4e70\u8fdb\u82f9\u679c\u82e5\u5e72\u5343\u514b\uff0c\u53c8\u4ee54\u5143\u94b12\uff0e5\u5343\u514b\u7684\u4ef7\u683c\u5356\u51fa\u53bb\u3002\u5982\u679c\u5e97\u91cc\u60f3\u5f97\u5230100\u5143\u94b1\u7684\u5229\u6da6\uff0c\u8fd9\u4e2a\u6c34\u679c\u5e97\u5fc5\u987b\u5356\u51fa\u6c34\u679c\u591a\u5c11\u5343\u514b\uff1f
(14)\u7532\u4e59\u4e19\u4e09\u4eba\u884c\u8d70\u7684\u901f\u5ea6\u5206\u522b\u4e3a\u6bcf\u5206\u949f30\u7c73\u300140\u7c73\u548c50\u7c73\u3002\u7532\u4e59\u540c\u5728A\u5730\uff0c\u4e19\u5728B\u5730\u3002\u7532\u4e59\u4e0e\u4e19\u540c\u65f6\u76f8\u5411\u800c\u884c\uff0c\u4e19\u9047\u89c1\u4e59\u540e10\u5206\u949f\u53c8\u548c\u7532\u76f8\u9047\uff0c\u6c42AB\u4e24\u5730\u76f8\u8ddd\u591a\u5c11\u7c73\uff1f
(15)\u7532\u4ece\u4e1c\u6751\u53bb\u897f\u6751\u970010\u5206\u949f\uff0c\u4e59\u4ece\u897f\u6751\u53bb\u4e1c\u6751\u9700\u884c15\u5206\u949f\uff0c\u4e24\u4eba\u540c\u65f6\u52a8\u8eab\u76f8\u5411\u800c\u884c\uff0c\u76f8\u9047\u65f6\u79bb\u4e2d\u70b9150\u7c73\uff0c\u6c42\u4e24\u6751\u95f4\u7684\u8ddd\u79bb\u3002
(16)\u4e00\u8f86\u6c7d\u8f66\uff0c\u7b2c\u4e00\u5929\u8dd1\u5b8c\u5168\u7a0b\u76842\uff0f5\uff0c\u7b2c\u4e8c\u5929\u8dd1\u5b8c\u5269\u4e0b\u76841\uff0f2\uff0c\u7b2c\u4e09\u5929\u8dd1\u7684\u8def\u7a0b\u6bd4\u7b2c\u4e00\u5929\u5c111\uff0f3\uff0c\u8fd9\u65f6\u5269\u4e0b\u7684\u8def\u7a0b\u662f50\u5343\u7c73\u3002\u6c42\u5168\u7a0b\u662f\u591a\u5c11\u5343\u7c73\uff1f
(17)\u5ba2\u8239\u4ece\u7532\u6e2f\u5f00\u5f80\u4e59\u6e2f\uff0c\u6bcf\u5c0f\u65f6\u884c24\u5343\u7c73\u3002\u8d27\u8239\u4ece\u4e59\u6e2f\u5f00\u5f80\u7532\u6e2f\uff0c12\u5c0f\u65f6\u884c\u5b8c\u5168\u7a0b\u3002\u73b0\u540c\u65f6\u76f8\u5bf9\u5f00\u51fa\uff0c\u76f8\u9047\u65f6\uff0c\u5ba2\u8239\u548c\u8d27\u8239\u6240\u884c\u8def\u7a0b\u4e4b\u6bd4\u4e3a6\uff1a7\uff0c\u7532\u4e59\u4e24\u6e2f\u95f4\u7684\u8ddd\u79bb\u3002
(18)\u7532\u4e59\u4e24\u7ad9\u76f8\u8ddd1134\u5343\u7c73\uff0c\u4e00\u5ba2\u8f66\u548c\u4e00\u8d27\u8f66\u540c\u65f6\u4ece\u4e24\u7ad9\u76f8\u5411\u5f00\u51fa\uff0c10\u5c0f\u65f630\u5206\u949f\u76f8\u9047\uff0c\u8d27\u8f66\u901f\u5ea6\u662f\u5ba2\u8f66\u901f\u5ea6\u76845\uff0f7\uff0c\u5ba2\u8f66\u6bcf\u5c0f\u65f6\u884c\u591a\u5c11\u5343\u7c73\uff1f
(19)\u67d0\u88c5\u914d\u8f66\u95f4\u7537\u804c\u5de5\u4eba\u6570\u768440%\u548c\u5973\u804c\u5de5\u4eba\u6570\u768420%\u76f8\u7b49\uff0c\u5df2\u77e5\u8fd9\u4e2a\u8f66\u95f4\u6709\u5973\u804c\u5de5130\u540d\uff0c\u7537\u804c\u5de5\u4eba\u6570\u6bd4\u5973\u804c\u5de5\u4eba\u6570\u5c11\u591a\u5c11\u540d\uff1f
(20)\u6709\u76d0\u6c3425\u5343\u514b\uff0c\u542b\u76d020%\uff0c\u52a0\u4e86\u4e00\u4e9b\u6c34\u540e\u542b\u76d08%\uff0c\u52a0\u4e86\u591a\u5c11\u6c34\uff1f
(21)\u7532\u4e59\u4e19\u4e09\u4e2a\u4ed3\u5e93\u5b58\u7cae\u5171307\u5428\uff0c\u5404\u8fd0\u51fa40\u5428\u540e\uff0c\u7532\u4e59\u4ed3\u5e93\u5269\u4e0b\u7cae\u98df\u91cd\u91cf\u7684\u6bd4\u662f3\uff1a5\uff0c\u4e59\u4e19\u4ed3\u5e93\u5269\u4e0b\u7cae\u98df\u91cd\u91cf\u7684\u6bd4\u662f3\uff1a4\uff0c\u4e19\u5e93\u539f\u6709\u7cae\u98df\u591a\u5c11\u5428\uff1f
(22)\u7532\u4e59\u4e24\u8f66\u95f4\u8981\u52a0\u5de5\u4e00\u6279\u9762\u7c89\uff0c\u5b9e\u9645\u5b8c\u6210\u8ba1\u5212\u7684130%\u7532\u4e59\u4e24\u8f66\u95f4\u5b8c\u6210\u4efb\u52a1\u7684\u6bd4\u4e3a8\uff1a5\uff0c\u4e59\u8f66\u95f4\u6bd4\u7532\u8f66\u95f4\u5c11\u52a0\u5de5\u9762\u7c8913\uff0e5\u5428\u3002\u539f\u8ba1\u5212\u52a0\u5de5\u7684\u9762\u7c89\u662f\u591a\u5c11\u5428\uff1f
\u3010\u5e94\u7528\u9898\u4e8c\u3011
(1)\u6709\u4e24\u7b50\u6c34\u679c\uff0c\u7532\u7b50\u6c34\u679c\u91cd32\u5343\u514b\uff0c\u4ece\u4e59\u7b50\u53d6\u51fa20\uff05\u540e\uff0c\u7532\u4e59\u4e24\u7b50\u6c34\u679c\u7684\u91cd\u91cf\u6bd4\u662f4:3\uff0c\u539f\u6765\u4e24\u7b50\u6c34\u679c\u5171\u6709\u591a\u5c11\u5343\u514b\uff1f
(2)\u8ba1\u5212\u88c5120\u53f0\u7535\u89c6\u673a\uff0c\u5982\u679c\u6bcf\u5929\u88c58\u53f0\u80fd\u63d0\u524d\u4e00\u5929\u5b8c\u6210\u4efb\u52a1\uff0c\u5982\u679c\u63d0\u524d4\u5929\u5b8c\u6210\uff0c\u6bcf\u5929\u5e94\u88c5\u914d\u591a\u5c11\u53f0\uff1f
(3)\u7532\u4e59\u4e24\u5730\u76f8\u8ddd1152\u5343\u7c73,\u4e00\u5217\u5ba2\u8f66\u548c\u4e00\u5217\u8d27\u8f66\u540c\u65f6\u4ece\u4e24\u5730\u5bf9\u5f00,\u8d27\u8f66\u6bcf\u5c0f\u65f6\u884c72\u5343\u7c73,\u6bd4\u5ba2\u8f66\u5feb 2/7\uff0c\u4e24\u8f66\u7ecf\u8fc7\u591a\u5c11\u5c0f\u65f6\u76f8\u9047\uff1f
(4)\u5b66\u6821\u4e70\u6765\u56fe\u4e66\u82e5\u5e72\u672c\u5206\u7ed9\u5404\u73ed,\u82e5\u6bcf\u73ed\u520625\u672c\u5219\u591a22\u672c,\u82e5\u6bcf\u73ed\u5206\u7ed930\u672c\u5219\u5c1168\u672c\uff0c\u5171\u6709\u51e0\u4e2a\u73ed\u7ea7\uff1f\u4e70\u6765\u56fe\u4e66\u591a\u5c11\u672c\uff1f
(5)\u679c\u54c1\u516c\u53f8\u50a8\u5b58\u4e00\u6279\u82f9\u679c\uff0c\u552e\u51fa\u8fd9\u6279\u82f9\u679c\u768430\uff05\u540e\uff0c\u53c8\u8fd0\u6765160\u7bb1\uff0c\u8fd9\u65f6\u6bd4\u539f\u6765\u50a8\u5b58\u7684\u82f9\u679c\u591a1/10 \uff0c\u8fd9\u65f6\u6709\u82f9\u679c\u591a\u5c11\u7bb1\uff1f
(6)\u7eff\u5316\u961f\u4fee\u6574\u8857\u5fc3\u82b1\u56ed\uff0c\u7528\u53bb900\u5143,\u6bd4\u539f\u8ba1\u5212\u8282\u7701\u4e86300\u5143\uff0c\u8282\u7701\u4e86\u767e\u5206\u4e4b\u51e0\uff1f
(7)\u67d0\u4fee\u8def\u961f\u4fee\u4e00\u6761\u516c\u8def\uff0c\u539f\u8ba1\u5212\u6bcf\u5929\u4fee200\u7c73\uff0c\u5b9e\u9645\u6bcf\u5929\u591a\u4fee50\u7c73\uff0c\u7ed3\u679c\u63d0\u524d3\u5929\u5b8c\u6210\u4efb\u52a1\uff0c\u8fd9\u6761\u516c\u8def\u5168\u957f\u591a\u5c11\u7c73\uff1f
(8)\u6709\u4e00\u957f\u65b9\u4f53\u94a2\u952d,\u5e95\u9762\u5468\u957f2\u7c73,\u957f\u4e0e\u5bbd\u7684\u6bd4\u662f4:1,\u9ad8\u6bd4\u5bbd\u5c1125\uff05\u5b83\u6b63\u597d\u53ef\u4ee5\u94f8\u6210\u9ad8\u4e3a3\u5206\u7c73\u7684\u5706\u9525\u4f53,\u5706\u9525\u4f53\u7684\u5e95\u9762\u79ef\u662f\u591a\u5c11?
(9)\u4e00\u6839\u7535\u7ebf,\u7b2c\u4e00\u6b21\u7528\u53bb\u5168\u957f\u768437.5\uff05,\u7b2c\u4e8c\u6b21\u7528\u53bb27\u7c73,\u8fd9\u65f6\u5df2\u7528\u7684\u7535\u7ebf\u4e0e\u6ca1\u7528\u7684\u7535\u7ebf\u957f\u5ea6\u6bd4\u662f3:2\u3002\u8fd9\u6839\u7535\u7ebf\u539f\u6765\u957f\u591a\u5c11\u7c73?
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答案在图片中,点击图片查看大图!
解:身高是1.65米、脚到肚脐的高度是1米,那么肚脐眼到头的高度是65厘米,
设这位女士为达到黄金比例,所要穿的高跟鞋的高度为x,则
(100+x)/165=0.618:1
X=1.97厘米
设高跟鞋的高度是X米
该女的下半身高度为1.65-1=0.65m
X=0.65/0.618-1约等于0.052
换算单位成厘米就是高度为5.2厘米是最完美
该题要注意两点:一、黄金比是指以肚脐为标准的上半身比下半身的比例;二、注意单位换算
上身65cm,按照黄金比例,下身应该为1.05m,所以应该穿5cm高跟鞋
这个好像我们到初中还在出
设鞋子高度为xm(要统一单位)
上半身长度=1.65-1=0.65m
0.65/(1+x)=0.618
解一下
绛旓細1銆.鏌愬巶鏈夎亴宸126浜恒傜敺銆佸コ鑱屽伐浜烘暟鐨勬瘮鏄2锛7銆傜敺鑱屽伐姣斿コ鑱屽伐灏戝灏戜汉锛2銆佷竴涓暱鏂瑰舰鐨勫懆闀挎槸24cm锛岄暱鍜屽鐨勬瘮鏄5锛1銆傝繖涓暱鏂瑰舰鐨勯潰绉槸澶氬皯 3銆佺敤120cm鐨勯搧涓濆仛涓涓暱鏂逛綋妗嗘灦銆傞暱銆佸銆侀珮鐨勬瘮鏄3锛2锛1銆傝繖涓暱鏂逛綋鐨勪綋绉槸澶氬皯骞虫柟绫筹紵4銆佷慨涓鏉¢暱240绫崇殑鍏矾銆傜敳淇畬鍏ㄩ暱鐨...
绛旓細瑙姣斾緥锛4:x=2.1:3 x:13鍒嗕箣6=3.25:3.5 锛6+x锛夛細5=14:7 瑙o細 2.1X = 4 X 3 瑙o細 3.5X = 3.25 *锛6/13锛 瑙o細7锛6+X锛= 5*14 X = 12/ 2.1 3.5 X = 锛13/4锛*锛6/13锛 锛6+X锛= 10 X = 40/7 ...
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绛旓細3.鏂版潙灏忓鏁欏妤肩殑鍦板熀鏄暱鏂瑰舰锛岄暱72绫炽傚14绫炽傜敤1/100鐨姣斾緥灏烘妸瀹冪敾鍦ㄥ浘绾镐笂锛屽浘涓婇暱鏂瑰舰鐨勯暱鍜屽鍚勬槸澶氬皯锛熼潰绉槸澶氬皯锛熻闀挎槸x鍘樼背 x锛72脳100锛1锛100 x锛72 璁惧鏄痽鍘樼背 y锛14脳100锛1锛100 y锛14 闈㈢Н鏄 72脳14锛1008骞虫柟鍘樼背 4.鍐滃満鏀跺壊灏忛害锛屽墠3澶╂敹鍓165鍏》锛岀収杩欐牱璁...
绛旓細1.灏忎竵浠庡鍒板鏍$殑瀹為檯璺濈鏄100m,鐢诲湪鍥句笂鏄2cm銆傝繖骞呭浘鐨姣斾緥灏烘槸澶氬皯锛熸瘮渚嬪昂锛濆浘涓婅窛绂伙細瀹為檯璺濈 锛2鍘樼背锛100绫 锛2鍘樼背锛10000鍘樼背 锛1锛5000 2.涓ゆ潙瀹為檯璺濈鏄1500m锛岀敾鍦ㄥ浘涓婄殑璺濈鏄7.5cm锛屼綘鐭ラ亾杩欏紶鍥剧殑姣斾緥灏哄悧锛熸瘮渚嬪昂锛濆浘涓婅窛绂伙細瀹為檯璺濈 锛7.5鍘樼背锛1500绫 锛7.5鍘樼背...
绛旓細鏈夊叧姣斾緥搴旂敤棰涓昏鏈:鎸夋瘮渚嬪垎閰,姝e弽姣斾緥搴旂敤棰樺強璺熸瘮渚嬫湁鍏崇殑姣斾緥鍜屽垎鐜囦簰鐩歌浆鍖栫殑缁煎悎搴旂敤棰樸 宸茶禐杩 宸茶俯杩< 浣犲杩欎釜鍥炵瓟鐨勮瘎浠锋槸? 璇勮 鏀惰捣 鎴堥槼绔ユ檽鏋 2020-07-02 路 TA鑾峰緱瓒呰繃3786涓禐 鐭ラ亾澶ф湁鍙负绛斾富 鍥炵瓟閲:3116 閲囩撼鐜:25% 甯姪鐨勪汉:273涓 鎴戜篃鍘荤瓟棰樿闂釜浜洪〉 鍏虫敞 ...
绛旓細灏忓鍏勾绾цВ姣斾緥搴旂敤棰 涓鏈鏁板涔,瑕5鍏,濡傛灉涔板崄鏈澶氬皯閽? 鍏勾绾цВ姣斾緥搴旂敤棰 涓嶈绛旀 1.鎼柊灞呰瑁呬慨,鍗栧湴鐮栭摵瀹㈠巺銆備竴闂村鍘呯敤姣忓潡闈㈢Н鏄1.5骞虫柟鍒嗙背鐨勫湴鐮栭摵鍦,婊¢摵瑕佺敤200鍧楀湴杞;濡傛灉鏀圭敤闈㈢Н鏄2骞虫柟鍒嗙背鐨勫湴鐮,婊¢摵瑕佺敤澶氬皯鍧楀湴杞? 2.閰嶅埗涓绉嶅啘鑽,鑽拰姘寸殑姣旀槸1:1000,鐜板湪鏈夎嵂3.2鍗冨厠,闇...
绛旓細搴旂敤棰:锛9+1锛/500=50锛堝崈鍏嬶級绯栵細50*1=50锛堝崈鍏嬶級姘达細50*9=450锛堝崈鍏嬶級瑙姣斾緥锛氾紵锛燂紵
绛旓細銆搴旂敤棰涓夈 (1)涓涓渾鏌变綋搴曢潰鍛ㄩ暱鏄彟涓涓渾閿ヤ綋搴曢潰鍛ㄩ暱鐨2/3,鑰岃繖涓渾閿ヤ綋楂樻槸鍦嗘煴浣撻珮鐨2/5,鍦嗛敟浣撲綋绉槸鍦嗘煴浣撲綋绉殑鍑犲垎涔嬪嚑? (2)鏈変竴鍙渾鏌变綋鐨/鐜荤拑鏉,娴嬪緱鍐呯洿缁忔槸8鍘樼背,鍐呰鑽按鐨勬繁搴︽槸6鍘樼背,姝eソ鏄澂鍐呭閲忕殑4/5,鍐嶅姞澶氬皯鑽按,鍙互鎶婃澂瀛愭敞婊? (3)鏈変袱绛愯嫻鏋,鐢茬瓙姣斾箼绛愬皯31涓...