求大神解答(๑•ั็ω•็ั๑)
来源:学生作业帮助网 编辑:作业帮 时间:2024/08/03 21:12:28
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求大神解答(๑•ั็ω•็ั๑)
求大神解答(๑•ั็ω•็ั๑)
求大神解答(๑•ั็ω•็ั๑)
假设x分钟两个相等
则有30+0.3*x=0.4*x
解方程得x=300min 也就是说5个小时时 两个计费费用相等