作业帮学校用29.6万元建新教学楼,比原计划节约了3.4万,节约了几分之几?
来源：学生作业帮助网 编辑：作业帮 时间：2024/04/28 19:18:06
20/1:500=10000厘米=100米12/比例尺=6000厘米=60米100*60=6000平方米再问：12/比例尺=6000厘米=60米，是什么意思？再答：12/比例尺=12/1:500
(42-1)*3=123
teachingbuilding(s)
花坛的宽：（36－16）÷2=10（米）花坛的面积：16×10=160（平方米）答：花坛的面积为160平方米.
看不出图上的数据再问：再答：a(b-c)+c(b-c)/2+(b-c)(b-c)=ab-ac+bc/2-c²/2+b²-2bc+c²=ab-ac-3bc/2+b²
teachingbuilding
0.2*500*0.12*500=6000㎡
面积=长乘宽所以65×（65-45）=130平方米
美3thfloorofteachingbuilding英2thfloorofteachingbuilding
Atthefirstsightyouseemaschool,youwouldloveit.thereisabigplaygroundinmyschool.It'scleanandbeautiful,w
Ourschool'sdiningroomisbetweentheteachingbuildingandthelibrary.
Ourschoolwillbuildnewlibraris,teachingbuildingsandaplayground.Anditwillbesurroundwithalotoftrees
NowIstudyinmiddleschoolinnewcentury,ourschoolissmallbutveryclean.Theschoolhasthreeteachingbuildings.
鳞次栉比高楼耸立直插云天雕梁画栋富丽堂皇古色古香别有洞天鳞次栉比金碧辉煌不同凡响重峦叠嶂举世闻名盖世无双高楼大厦摩天大厦青瓦白墙
1.v=s/t=510米/340米/秒=1.5秒2.超声波人耳只能听到20～20000赫兹而狗能听到15至50000赫兹
teachingbuilding
TeachingBuilding标准的
Thereisapinkteachingbuildinginmyschool.
Therearethreeteachingbuildingsinourschool,namelyNo.1TeachingBuilding,No.2TeachingBuildingandNo.3Teac
Yourschoolteachingbuildingwhere?