作业帮周末到了,同学张立
来源：学生作业帮助网 编辑：作业帮 时间：2024/05/28 09:12:47
有题意设集合地距离张明家为xkm由题意知：x/12-x/20=（30+10）/60解得X=20km设其骑车速度为v时,比预定时间早15分钟到达可得公式：x/v-x/20=(30-15)/60将x=20
经过张老师的教育,使小明同学认识到了自己的错误缺主语“经过”为介词,构成介宾短语,没有主语了,应去掉“经过”
Theweekendiscoming.Iwillhaveahappyweekend.OnSaturdaymorning,I’mgoingtodomyhomework.Andthen,I’mgoingo
设约定时间为X每小时.20X+0.5=12X-0.17好了解方程会吧30分钟=0.5小时同样的10风中也要换算成小时
Youcanwritethearticleallbyyourselfusingthepasttense.
周末快要到了,祝有一个愉快的周末.Theweekendiscoming.Enjoyyourweekend.
如果指一个同学：Whatdoseyourclassmatedoatweekend?如果是两个以上同学：Whatdoyourclassmatesdoatweekend?
1.8:402.(52+48)x4=400米3.甲：(310+250)x0.6=336元乙：310+250-200=360元甲商场比较便宜4.(31+1)/(4/5)=40亿元5.1.2x3.14x2
m（m-1）
C.m(m-1)要互送的哦.
设时间是X时.20（X-1/2）=12（X+1/6）X=3/2路程：20×（3/2-1/2)=20千米速度：20÷（3/2-1/4）=16千米/时答：张明的骑车速度应该是16千米/时
然后呢?问题没写完整啊!
设集合地点到他家的距离为s千米,约定时间是7点之后的t分钟,那么s=20*(t-30)/60s=12*(t+10)/60∴s=20千米,t=90分钟∴v=60*s/(t-15)=16km/h
wewillleaveat8o'clockinthemorningandcomebackbefore5o'clock.atnoon,wewillenjoyatastypicniconthegrass.
WearegoingtovisitPeoplePark.First,wewillmeetatschoolgateat7:30inthemorning.Thenwearegoingtogothereby
周末到了,愿你能做个好梦,睡个好觉!Weekendsiscoming,wishyouhaveagooddreamandsleep!
Dearmother,I'mgoingtothePeople'sParkwithmyclassmatesthisSunday.wewillleaveat8o'clockinthemorningandc
同学,为你DearMum,I'mgoingtothePeople'sParkwithmyclassmatethisSunday.Wewillleaveat8o'clockinthemorningand
wewillleaveat8o'clockinthemorningandcomebackbefore5o'clock.atnoon,wewillenjoyatastypicniconthegrass.
Weinviteateamofclassmatetothefronttoperformadialogue,thecontentis:Theweekendisahead,youmeetyourclass