学校组织教职工参加夏令营

①由分析知，该校报名参见活动的总人数为：25÷50%=50（人）[或15÷30%=50（人）]；②报名参加乙组的人数为：50-15-25=10（人）．条形统计图如下：故答案为：50，25÷50%，10

DearEditor,IhavejoinedanEnglishsummercamprecentlybutIamverydisappointedbecausetheorganiserdidn'tkeep

题目不完整再问：哪儿？再答：大客车：座位数（个）：每天租金（元）：小客车：座位数（个）：每天租金（元）????再问：这个是我不知道的再答：啊？学校利用暑假组织四年级120名学生和5名教师参加夏令营活动

设租用小帐篷X个,大帐篷Y个.则列出如下方程组.10x＋22y＝120①设租用帐篷总花费为z元.z＝60x＋100y②一式带入二式可得到z＝720-32y③由三式可知y取最大时花费最小.若全部租用大帐

InBeijingforfivedays:TheveneratedChinesehistoryhasstrewnthelandofBeijingwithsitesofculturalandhistor

...接上iamamiddleschoolstudent,MynameisTom,iamfromNo1middleschool.iwanttojionthisactivitybecauseiwantt

DearChairman,IamLiHua,astudentofNO.1middleschoolofChangSha,Hunanprovince.Ilearnfromtheinternetthatth

DearTimHowareyoudoingrecently?IwanttoinviteyoutojoinasummercampwhichheldbymyschoolfromJulyfifteentht

DearEditor,IhavejoinedanEnglishsummercamprecentlybutIamverydisappointedbecausetheorganiserdidn'tkeep

Apossibleversion:DearSir/Madam,IhavejustreturnedfromtheEnglishSummerCampatyourSchoolofLanguage,andI’

设女生人数为x人,男生人数为y人.根据题意得x-5=y+52(y-4)=x+4化简得x-y=102y-x=12解得x=32y=22答：略

Dearheadmaster,Hello.ThisisZhanghong,astudentofClassxxx,Gradexxx.Iamgladtohearthattherewillbeasummer

Hello,Iamzhang,IhopeIcanjoinintotheUnitedStatesthisactivity,andIwishIlivedinafriendlyfamily.Myhobbyi

Ourschoolwillholdasummercampthissummerholiday.ItisnamedGoToAmericanFamily.IhopethatIcanhaveanopportu

28*x-4*14=26x解得2x=4*14x=28那就是28名教职工了

设学校去了X名教职工28x－28÷2×4=26xx=28(用单价28乘以去的人数x得出的结果就是每位28元那家公司优惠以前的总费用.28÷2是每个人费用的半价,再乘以4就是4个人的半价,也就是优惠的金

iamamiddleschoolstudent,MynameisTom,iamfromNo1middleschool.iwanttojionthisactivitybecauseiwanttoimpr

DearprincipalI'dliketojointhesummercamp"comeintotheAmericanfamily"andmyreasonsareasfollows.Tobeginwi

DearEditor,IhavejoinedanEnglishsummercamprecentlybutIamverydisappointedbecausetheorganiserdidn'tkeep

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