thank youa、b相距540km,甲乙往返于a、b之间,到达对方出发地立即返回,乙比甲快,两车同时从a出发后第一次和第二次相遇都在途中p地,那么,当两车第三次相遇时,乙共行多少千米?

thank youa、b相距540km,甲乙往返于a、b之间,到达对方出发地立即返回,乙比甲快,两车同时从a出发后第一次和第二次相遇都在途中p地,那么,当两车第三次相遇时,乙共行多少千米? 关于英语介词选择题you look cool----a new hat.Thank youA.on B.at C.without D.in thanks a lot.为什么不用thank youa lot. How is your mother?______,thank youA She's very good.B She feels good C She is fat work D She is very well. please take your __here ,the manager will come in a few minutes OK Thank youA seat B bag C time D work 说理由哟 () Pretty good thank youA How is your mother.B What's her name.C.What's her telephone number.D.Who is she ________ the weather .please call 121 OK I will .Thank you________ the weather .please call 121OK I will .Thank youA know B knowing C known D To know 甲乙两地相距560km,A从甲地开往乙地每时80km,B车从乙地开往甲地,每时行60km（1）如果A车行了30分钟后B车才出发,问B车出发多久后与A车相遇.（用一元一次方程解）Thank you very much! ·已知a,b,c为正整数,且满足a^2-b^2-c^2=abc,a^2=2(b c),求a,b,c的值thank youa^2=2(b+c) A、B两地相距30km甲的速度是6km乙的速度是4KM反向而行求几小时后二人相距40km A．B两地相距440km,甲乙同时开出,3．5时相距20km甲每小时65km,乙每小时行多少km? a,b两地相距360km,在1:10000000的地图上,它们相距（）cm. 甲乙两地相距540km,a车从甲地开往乙地,每小时行80km,b车从乙地开往甲地,每小时行60km.(1)如果a车行了1.5小时后b车才出发,b车出发后多长时间与a车相遇?(2)若两车同时出发,经过多少相距160km? the days ______belong to youA.COMING b.to come Please ____ the tigers It's dangerous to get too close to then Oh .I see thank you A keep off B takPlease ____ the tigers It's dangerous to get too close to then Oh .I see thank youA keep off B take off C get off D put offJackit is really a true frie _______ the weather .please call 121 OK I will .Thank you A know B knowing C known D To know ________ the weather .please call 121OK I will .Thank youA know B knowing C known D To know为什么用TO know 不用knowing。 A,B两地相距1000km,货车从A地出发,每小时行120km,客车从B地出发,每小时行80km,几小时后两车相距20km? AB两地相距300km,甲车从A地出发开往B地,速度40km/h,已车从B地出发开往A地,速度60km/时几小时后两车相距20km?初一下学期方程