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3588047312015-05-13·TA获得超过109个赞知道答主回答量：30采纳率：0%帮助的人：11.5万我也去答题访问个人页关注展开全部（1）由题意，得 慢车的速度为：480÷（9-1）=60千米/时， ∴a=60×（7-1）=360千米． 答：慢车的行驶速度为60千米/时，a的值为360千米； （2）由题意，得 5×60=300， ∴D（5，300），设yOD=k1x，由题意，得 300=5k1， ∴k1=60， ∴yOD=60x． ∵快车的速度为：（480+360）÷7=120千米/时． ∴480÷120=4小时． ∴B（4，0），C（8，480）． 设yAB=k2x+b，由题意，得 480＝b 0＝4k2+b 解得： k2＝?120 b＝480 ∴yAB=-120x+480 ∴ y＝60x y＝?120x+480 解得： x＝ 评论 | 22 52 其他类似问题 2014-11-01快，慢两车分别从相距480千米路程的甲，乙两地同时出发，匀速... 204 2015-02-08快、慢两车分别从相距360千米路程的甲、乙两地同时出发，匀速... 2 2011-02-141.甲乙两车同时从相距480千米的两地相对开出，4小时后在途... 21 2013-10-27快、慢两车分别从相距360千米路程的甲、乙两地同时出发， 24 2011-03-15甲乙两车同时从相距480千米的两地相对而行，甲车每小时行45... 53 更多关于快慢两车分别从相距480千米的问题>> <table cellpadding="-1" 等待您来回答 0回答足球和篮球一***有12个,已知框外面有5个球,那足球最多有多少个? 0回答一个排球和一个足球303元.两个足球一个排球438元.问他们各是多少元... 0回答翻译英语他们不打算看足球比赛 2回答66个足球要十个一筐需要多少筐才能装完 0回答开罗足球为啥没有游戏时间奖励 1回答总说足球混合过关有什么技巧，是不是真的啊？ 1回答请问足球服 胸前有三条小杠，像手机信号一样的，是什么牌子的？我弟... 1回答皮球48·50元足球106·65元排球43.25元(1)带200元买1个足球和2个皮... 0回答学校买来27个足球,体育组又还来了39个足球,要把这些足球10个装一筐... 0回答小学生毕业赞美足球教练 1回答姓罗的足球运动员头发有刘海 1回答 20 从没买过，想试一把足球让球 0回答八卦岭体育馆今晚有足球比排么 0回答李老师带200元钱去买足球猫体育用品商店的足球原价每个30元现在正在... 1回答下图有3个篮球6个足球18个排球提出两个用除法计算的问题,再列式计算 没有感兴趣的问题？试试更多等待您来回答的问题>> 358804731 二级 已签到活跃天数:1天 最快回答 知道日报 2015.05.13往期回顾 623 精彩知识在知道 关注百度知道微博，互动拿好礼！ 真相问答机，我们一起粉碎流言！ 免费领取《知道日报》主题专刊 知道大数据，用数据解读生活点滴 帮助 | 意见反馈 | 投诉举报 | 加入我们 2015 Baidu 使用百度前必读 | 知道协议 | 百度知道开放平台已赞过已踩过你对这个回答的评价是？评论收起推荐律师服务：若未解决您的问题，请您详细描述您的问题，通过百度律临进行免费专业咨询| ._1uevpeq{zoom:1;background-color:#fff;border:0;margin-bottom:10px;padding:30px 0 20px 42px;position:relative}._1uevpeq.ec-1841{padding:20px 0}._1uevpeq.ec-2246{padding:20px 0 10px}.ec-1841 .y7we4hu{font-size:16px;margin-bottom:-5px}.y7we4hu{color:#7a8f9a;height:25px;line-height:25px;overflow:hidden;position:relative}.y7we4hu h2{margin:0;padding:0}.y7we4hu:after{clear:both;content:" 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