小青去商店买文具和服务员的对话
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设买文具X元,图书y元X+Y=15Y=2X+3把第二个式子代入第一个得3X+3=15解的X=4所以Y=11
我有一本这方面的书,先给你写一些吧.希望能帮上忙!Hello,mayIhavealookatthis?Canyoudomeafavor?Howmuch?/Howmuchdoesitcost?Areth
设买文具花了x元,即买图书花了2x元x+2x=153x=15x=5答:买图书花了10元,买文具花了5元.
设买文具花了X元,则买图书花了2X+3元X+2X+3=15X=4答:买文具花了4元,买图书花了11元
设铅笔批发价为x元,橡皮批发价为y元,则铅笔零售价为(x+0.05)元,橡皮零售价为(y+0.10)元,根据题意列出方程组得30[2(x+0.05)+(y+0.10)]=3030(3x+2y)=40.
设文具袋的单价是X元,笔记本的单价是Y元.x+2y=22(1)2x+6y=56(2)由(1),得:x=22-2y(3)把(3)带入(2),得:2(22-2y)+6y=56去括号,得:44-4y+6y=
设零售价铅笔x元,橡皮Y元①2X×30+30Y=3960X+30Y=39②3×30(X-0.1)+2×30(Y-0.25)=4290(X-0.1)+60(Y-0.25)=42①+②90(X-0.1)+
salesgirl:scustomer:cs:CanIhelpyou?请问您有什么需要帮助的?c:Yes,please.I'mlookingforadress.恩,我想买一条连衣裙.s:Well,ho
Seller:Goodmorning,sir.WhatcanIdoforyou?I:Iamlookingforapairofnicethrouses.S:Whatdoyouthinkofthis?It
CanIhelpyou?YesIwantacake.Whichkind?Theonewithfruit.Thisone?Yes.30RMBThankyou
(186-82)÷4=104÷4=26元每个订书器的售价是26元
A:canIheIpyou?B:IwanttobuyapenA:whichcoloursdoyoulikeB:Oh,letmesee...A:Howabouttheredone?B:Itistoobi
文具5元,图书10元再问:方程式再答:设文具x元,图书2x元x+2x=153x=15x55x2=10答:文具5元,图书10元
S:Canihelpyou?M:Yes,please.Iwanttobuyahatformydaughter.S:Howaboutthis?M:Ok.S:Andwhatcolordoesyourdau
再答:方程你可以自己解吗?再答:不会可以追问
a:canihelpyou(我能帮你吗?)b:yes.iwantapencil.(是的.我想要一只铅笔.)a:hereyouare.(给你)b:howmuchisit?(多少钱)a:itis1yuan
(6+0.3)÷(1+1-3/5)=6.3÷7/5=4.5元小民6-4.5=1.5元小强
seller:WhatcanIdoforyou?customer:Iwanttobuyapresentformywife.seller:whatkindofpresentdoesyourwifelik
一.assistant:CanIhelpyou?I:Yes.Howmucharetheshoes?assistant:Theyare40yuan.I:Howabout30yuan?assistant:
Gotoschool不迟到Book书本知识多勾勾画画要记牢先用sharpener削好笔Penpencil派用场Ruler尺子画直线Caryon蜡笔涂色忙一不小心写错字rubber,eraser来帮忙学