大师作文网周末爸爸带小明去郊游,用30分走了全程的四分之一
来源：学生作业帮助网 编辑：作业帮 时间：2024/11/10 08:53:14
（1）15(2)y1=20(x-5)即y1=20x-100(3)y2=15-10(x-5)即y2=-10x+65（4）点c表示小明与爸爸相遇．当小明与爸爸相遇时,y1=y2即20x-100=-10x+
（1）速度S=路程除以时间=Y/X=20/1=20km/h,游玩时间t=2-1=1小时（2）到门口时小明花费总时间为135分钟（1小时50分+25分）那么小明骑车的总路程Y=20*1+20*(135-
Doyouoftenhelpyourdaddymakedinnerduringweekend?
MyparentsandIgoingtoparkthisweekend,Andflyakite.ButIwassickyesterday,Ihadacold.ThenIhaveafever,Thedo
全程6/7中的7/15是下坡路等于6/7×7/15=42/105=2/5
ThisweekendmyparentsandIplantogohiking,andflyingkites.ButyesterdayIwassick,cold,fever,thedoctorasked
haveapicnic
AHappyTimeTheweekendoftheNationalHoliday,IwenttoDalianwith7studentsandhadahappytime.At6:30webeginnin
设全程x千米.x÷3+20=x解得x=30千米答：全程一共30千米
Myfatheroftengoesfishingatweekends.
Weekend,Iandsomefriendswenttothecountryside!
AHappyTimeTheweekendoftheNationalHoliday,IwenttoDalianwith7studentsandhadahappytime.At6:30webeginnin
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
WatchBeijingoperawithfatheratweekend.
fieldtripouting
Onweekend,thestudentsarehavingagoodschooltrip.Theyaregoingtovisittheseascapeandgoingtohavesomeactivi
Myfatherlikestogofishingatweekends.
schooltrip再问：“trip”不是“旅游”的意思吗？我说的是“郊游”！！！！！！！！！！！！！再答：我知道，schooltrip可以翻译成“郊游”。
excursionoutingschooltrip
Myfatherreadbookinweekend