两车从两地开出相向行驶.4.5小时后两车在距中9千米处相遇,快车1小时行42千米,甲乙两地相距多少千米?
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/27 01:09:27
![两车从两地开出相向行驶.4.5小时后两车在距中9千米处相遇,快车1小时行42千米,甲乙两地相距多少千米?](/uploads/image/z/6692553-9-3.jpg?t=%E4%B8%A4%E8%BD%A6%E4%BB%8E%E4%B8%A4%E5%9C%B0%E5%BC%80%E5%87%BA%E7%9B%B8%E5%90%91%E8%A1%8C%E9%A9%B6.4.5%E5%B0%8F%E6%97%B6%E5%90%8E%E4%B8%A4%E8%BD%A6%E5%9C%A8%E8%B7%9D%E4%B8%AD9%E5%8D%83%E7%B1%B3%E5%A4%84%E7%9B%B8%E9%81%87%2C%E5%BF%AB%E8%BD%A61%E5%B0%8F%E6%97%B6%E8%A1%8C42%E5%8D%83%E7%B1%B3%2C%E7%94%B2%E4%B9%99%E4%B8%A4%E5%9C%B0%E7%9B%B8%E8%B7%9D%E5%A4%9A%E5%B0%91%E5%8D%83%E7%B1%B3%3F)
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两车从两地开出相向行驶.4.5小时后两车在距中9千米处相遇,快车1小时行42千米,甲乙两地相距多少千米?
两车从两地开出相向行驶.4.5小时后两车在距中9千米处相遇,快车1小时行42千米,甲乙两地相距多少千米?
两车从两地开出相向行驶.4.5小时后两车在距中9千米处相遇,快车1小时行42千米,甲乙两地相距多少千米?
设甲乙两地相距2x千米,则快车行驶了(x+9)千米,快车行驶的时间t=4.5h,速度v=42km/h,则路程s=vt=4.5*42=189(km).而x+9=189,所以x=180,总路程2x=360(千米)
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