求比例尺的算式题 4个计算比例尺的题(地理)带答案
\u6bd4\u4f8b\u5c3a\u95ee\u9898\uff08\u7b97\u5f0f\uff09\u89e3\uff1a \u8bbe\u56fe\u4e0a\u8ddd\u79bb\u4e3ax\u5398\u7c73\uff0c y\u8868\u793a\u5b9e\u9645\u8ddd\u79bb(\u6216\u5b9e\u9645\u5c3a\u5bf8), M\u8868\u793a\u6bd4\u4f8b\u5c3a\uff1b \u4e141\u7c73\uff1d100\u5398\u7c73\u3002
\u516c\u5f0f\uff1a\u56fe\u793a\u5c3a\u5bf8\uff1a\u5b9e\u9645\u5c3a\u5bf8\uff1d\u6bd4\u4f8b\u5c3a\u3002
1. x\uff1a6000\uff1d1\uff1a2000\uff0c
x=6000*1/2000=3 ( \u5398\u7c73) .
\u7b54\uff1a\u56fe\u4e0a\u8ddd\u79bb\u662f3\u5398\u7c73\u3002
2. 5\uff1ay==1\uff1a6000000\u3002
y=5*6000000=30000000 ( \u5398\u7c73)\u3002
\u7b54\uff1a\u5b9e\u9645\u8ddd\u79bb\u662f30000000\u5398\u7c73\u3002
3. 3\uff1a150000=M(\u6bd4\u4f8b\u5c3a).
\u5373\uff0cM\uff1d3/150000\uff1d1/5000.
\u7b54\uff1a\u6240\u6c42\u6bd4\u4f8b\u5c3aM\uff1d1\uff1a5000
4. M=6/1800000=1/300000.
\u7b54\uff1a\u6240\u6c42\u6bd4\u4f8b\u5c3aM=1\uff1a300000.
5. M=20/40000.
=1/2000.
\u7b54\uff1a\u6bd4\u4f8b\u5c3aM=1\uff1a2000.
6. x\uff1a600000\uff1d1\uff1a150000.
x=600000*1/150000.
x=4 (\u5398\u7c73)
\u7b54\uff1a\u56fe\u4e0a\u8ddd\u79bb\u4e3a4\u5398\u7c73\u3002
7. M=6/3000=1/500.
\u7b54\uff1a\u6bd4\u4f8b\u5c3a\u4e3a1\uff1a500.
8. x\uff1a3000000\uff1d1\uff1a2000000.
x=3000000*1/2000000.
x=3/2=1.5 (\u5398\u7c73).
\u7b54\uff1a\u56fe\u4e0a\u5c3a\u5bf8\u4e3a1.5\u5398\u7c73\u3002
\u6bd4\u4f8b\u5c3a\u95ee\u9898\uff1a1.\u540c\u6837\u7684\u56fe\u5e45\u6bd4\u4f8b\u5c3a\u8d8a\u5c0f\u7684\u63cf\u8ff0\u7684\u8d8a\u8be6\u7ec6\u8fd8\u662f\u8d8a\u7c97\u7565.\u7b54\u6848\uff1a\u8d8a\u8be6\u7ec6
2.\u4e0b\u5217\u6bd4\u4f8b\u5c3a\u4e2d,\u6700\u5927\u7684\u662f\uff1a\uff08 \uff09
A\u3001\u4e00\u767e\u4e07\u5206\u4e4b\u4e00 B\u30011\u223620000 C\u30011\u223612500 D\u30011\u22361500\u7b54\u6848\uff1aD
3.1\u22361 000 000\u7684\u6bd4\u4f8b\u5c3a\u6539\u5199\u6210\u6587\u5b57\u5f0f\u5e94\u662f\uff1a\uff08\uff09
A\u3001\u56fe\u4e0a1 \u5398\u7c73\u7b49\u4e8e\u5b9e\u5730\u8ddd\u79bb10\u5343\u7c73
B\u3001\u4e00\u767e\u4e07\u5206\u4e4b\u4e00
C\u3001\u56fe\u4e0a1\u5398\u7c73\u4ee3\u8868\u5b9e\u5730\u9762\u79ef10\u4e07KM2
D\u3001\u56fe\u4e0a1 \u5398\u7c73\u4ee3\u8868\u5b9e\u5730\u8ddd\u79bb10\u5343\u7c73 \u7b54\u6848\uff1aD
4.\u73b0\u6709\u56db\u5e45\u6211\u56fd\u7701\u533a\u6302\u56fe,\u5982\u679c\u56fe\u5e45\u5927\u5c0f\u76f8\u540c,\u90a3\u4e48\u6309\u6bd4\u4f8b\u5c3a\u7531\u5927\u5230\u5c0f\u7684\u987a\u5e8f\u6392\u5217 \u6b63\u786e\u7684\u662f\uff08 \uff09A\uff0e\u65b0\u3001\u9752\u3001\u9c81\u3001\u743c B\uff0e\u9752\u3001\u9c81\u3001\u65b0\u3001\u743c C\uff0e\u9c81\u3001\u743c\u3001\u65b0\u3001\u9752 D\uff0e\u743c\u3001\u9c81\u3001\u9752\u3001\u65b0 \u7b54\u6848D 5.\u7ed8\u5236\u4e00\u5f20\u5b66\u6821\u5e73\u9762\u56fe,\u91c7\u7528\u4e0b\u5217\u54ea\u4e00\u79cd\u6bd4\u4f8b\u5c3a\u6700\u9002\u5408\uff1a\uff08 \uff09
A\u30011\u22361000 B\u30011/3000000 C\u30010 40KM
D\u3001\u56fe\u4e0a1\u5398\u7c73\u4ee3\u8868\u5b9e\u5730\u8ddd\u79bb2\u5343\u7c73 \u7b54\u6848A
比例尺:1∶1000
100米=10000厘米,60米=6000厘米
图上的长:10000×(1/1000)=10(厘米)
图上的宽:6000×(1/1000)=6(厘米)
(2)在一幅中国地图上,量得北京到天津的距离是12cm,北京到天津的实际距离大约是120km。求这地图的比例尺。120km=12000000厘米
这地图的比例尺为 12∶12000000=1∶1000000
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绛旓細杩欏箙鍥剧殑姣斾緥灏鏄細1锛120000 绠楀紡锛1锛氾紙3000x100梅2.5锛=1锛120000
绛旓細3銆佺敳銆佷箼涓ゅ煄鐩歌窛150KM锛屽湪涓鍓湴鍥句笂閲忕殑鐢层佷箼涓ゅ煄涔嬮棿鐨勮窛绂绘槸5CM锛屽悓鏃跺湪杩欏箙鍦板浘涓婇噺鐨勪箼銆佷笝涓ゅ煄涔嬮棿鐨勮窛绂绘槸7CM锛屼箼銆佷笝涓ゅ煄涔嬮棿鐨勫疄闄呰窛绂绘槸澶氬皯KM锛姣斾緥灏锛1锛3000000 7*3000000=210km 4銆佸疄楠屽皬瀛﹁淇缓涓涓渾褰㈣姳鍧涳紝鍥句笂杩欎釜鑺卞潧鍗婂緞1.5CM锛屽凡鐭ヨ繖涓姳鍧涚殑瀹為檯鐩村緞鏄6绫筹紝姹傚嚭...
绛旓細鈶犺杩欎釜闆朵欢鐨勫疄闄呴暱搴︿负xcm 2:1=2锛歺 2x=2 x=1 杩欎釜闆朵欢鐨勫疄闄呴暱搴︽槸1cm銆傗憽璁捐繖寮犲浘绾哥殑姣斾緥灏涓簒 6:1=x 杩欏紶鍥剧焊鐨勬瘮渚嬪昂鏄6:1.
绛旓細1 40:1 20鍘樼背=200姣背 200/5=40:1 2 20:1 10鍘樼背=100姣背 100/5=20:1 3 鍋囪闀挎柟浣撶殑鍦轰负3 瀹戒负1 闀=3*(1/3) 瀹=1*(1/3)4 12/(30/1)
绛旓細A鍦板埌B鍦扮殑瀹為檯璺濈鏄 3.6梅1/2000000锛7200000锛堝帢绫筹級锛72锛堝崈绫筹級琛屽畬鍏ㄧ▼闇瑕 72梅30锛2.4锛堝皬鏃讹級锛2灏忔椂24鍒 鍒拌揪B鍦版椂鏄 9鏃讹紜2鏃24鍒嗭紳11鏃24鍒
绛旓細瑙g瓟濡備笅锛氭垜浠煡閬擄細鍥句笂璺濈锛氬疄闄呰窛绂=姣斾緥灏锛堜簩鑰呭崟浣嶅繀椤昏缁熶竴锛1.璁剧敳涔欎袱鍦板疄闄呰窛绂讳负X,鍒欐湁锛5锛歺=1锛4000000 瑙e緱锛歺=20000000 鑰20000000cm=200km 鎵浠ワ細杩欒締杞︾殑琛岄┒閫熷害=200/4=50锛坘m/灏忔椂锛2.璁惧浘涓婇暱涓簒,瀹戒负y,鍒欐湁锛200绫=20000cm,100绫=10000cm x:20000=1:2000 ,x=10...
绛旓細姣斾緥灏=鍥句笂璺濈/瀹為檯璺濈锛屾墍浠ヨ繖閬撻涓殑姣斾緥灏=1:800=1梅800
绛旓細1銆 320绫=32000鍘樼背 80梅32000=1锛400 姣斾緥灏涓1锛400 2銆 1.35km=135000cm 135000脳1/15000=9cm 搴旂敾9鍘樼背 3銆 3.6梅1/2000000=72鍗冪背 72梅30=2.4灏忔椂 8+2.4=10鏃40鍒 鎴戣嚜宸卞啓鐨勶紝涓嶄細閿欏摝
绛旓細1.x/120=1/6000000 2.1/300=12.3/X 3.1/3000=X/120=Y/75