甲乙两车从AB两地同时相向而行相遇时距AB两地中点处12千米己知甲车的速度是乙车的2/3请帮我画出示意图 如何画图。甲乙两车从ab两地同时出发,相向而行,相遇时距ab...
\u5982\u4f55\u753b\u56fe\u3002\u7532\u4e59\u4e24\u8f66\u4eceab\u4e24\u5730\u540c\u65f6\u51fa\u53d1\uff0c\u76f8\u5411\u800c\u884c\uff0c\u76f8\u9047\u65f6\u8dddab\u4e24\u5730\u4e2d\u70b9\u590412\u5343\u7c73\u3002\u5df2\u77e5\u7532\u8f66\u901f\u5ea6\u662f\u4e59\u8f66\u7684\u76f8\u9047\u65f6\u7532\u4e59\u4e24\u8f66\u6240\u884c\u7684\u8def\u7a0b\u6bd4=\u901f\u5ea6\u6bd4=2/3\uff1a1=2\uff1a3
\u753b\u56fe\u5206\u6790\uff1a
\u4f60\u628a\u5168\u957f\u5e73\u5747\u5206\u62105\u4efd\uff0c\u7532\u8f66\u884c\u4e862\u4efd\uff0c\u4e59\u8f66\u884c\u4e863\u4efd\uff0c\u8ddd\u79bb\u4e2d\u70b95\u00f72-2=0.5\u4efd\uff0c\u76f8\u9047\u65f6\u7532\u6bd4\u5c11\u884c12+12=24\u5343\u7c73
\u4f1a\u753b\u5417\uff1f\uff0c\u5982\u679c\u8fd8\u4e0d\u4f1a\uff0c\u8bf7\u8ffd\u95ee
\u6211\u7b80\u5355\u753b\u4e86\u4e00\u4e2a\u8349\u56fe
\u89e3\u7b54\u5982\u4e0b\uff1a
\uff0812+12\uff09\u00f7\uff081-2/3\uff09\u00d7\uff081+2/3\uff09
=24\u00f71/3\u00d75/3
=120\uff08\u5343\u7c73\uff09
\u7b54\uff1aA\uff0cB\u4e24\u70b9\u4e4b\u95f4\u7684\u8def\u7a0b\u662f120\u5343\u7c73\u3002
\u795d\u4f60\u5f00\u5fc3
\u76f8\u9047\u65f6\u7532\u4e59\u4e24\u8f66\u6240\u884c\u7684\u8def\u7a0b\u6bd4=\u901f\u5ea6\u6bd4=2/3\uff1a1=2\uff1a3
\u753b\u56fe\u5206\u6790\uff1a
\u4f60\u628a\u5168\u957f\u5e73\u5747\u5206\u62105\u4efd\uff0c\u7532\u8f66\u884c\u4e862\u4efd\uff0c\u4e59\u8f66\u884c\u4e863\u4efd\uff0c\u8ddd\u79bb\u4e2d\u70b95\u00f72-2=0.5\u4efd\uff0c\u76f8\u9047\u65f6\u7532\u6bd4\u5c11\u884c12+12=24\u5343\u7c73
\u4f1a\u753b\u5417\uff1f\uff0c\u5982\u679c\u8fd8\u4e0d\u4f1a\uff0c\u8bf7\u8ffd\u95ee
\u6211\u7b80\u5355\u753b\u4e86\u4e00\u4e2a\u8349\u56fe
\u89e3\u7b54\u5982\u4e0b\uff1a
\uff0812+12\uff09\u00f7\uff081-2/3\uff09\u00d7\uff081+2/3\uff09
=24\u00f71/3\u00d75/3
=120\uff08\u5343\u7c73\uff09
\u7b54\uff1aA\uff0cB\u4e24\u70b9\u4e4b\u95f4\u7684\u8def\u7a0b\u662f120\u5343\u7c73\u3002
\u795d\u4f60\u5f00\u5fc3
解:
(12+12)÷(1-2/3)×(1+2/3)
=24÷1/3×5/3
=120(千米)
答:AB两地相距120千米。
祝你开心
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