神马作文网妈妈每天花25分钟骑车上班
来源：学生作业帮助网 编辑：作业帮 时间：2024/11/11 20:16:49
150*25=3750小于4000,所以到不了学校
1.5分钟题目高的单位不妥,计算方法没有错误赵兰步行每分钟行75千米.妈妈骑车去追,每分行375千米
Alexspendes15minutes(on不用加)walkingtoschool再问：-------Alex15minutes---------------------------everyday
1.HespendstwohoursreadingEnglisheverymorning.2.Myfatherspends15minuteswalkingtoworkeveryday.3.Weofte
下班速度与上班的速度比是5：6,那么下班时间与上班的时间比是6：5,上班用时：5÷（6-5）×5=25分
Myfathercostshalfanhourtodrivetoofficeeveryday.
因为小明是跑回家的,妈妈在街上堵了5分钟的车.```-0-``
Ispendtwentyminutesgoingtoschoolbybikeeveryday.
设爸爸出发时离上班时间有X分钟75*(X+5)=200*(X-7)75X+375=200X-1400125X=1775X=14.2爸爸出发时离上班时间有14.2分钟
1.Ispendthreehoursdoingmyhomeworkeveryday.=Ittakesmethreehourstodomyhomeworkeveryday.2.Hespendstenmi
Ittakeshim30minutestoplaybasketballHespends30minutes(in)playingbasketballHespends30minutesonbasketba
4/(2/5)=4*5/2=10km每小时10km
Itakehalfanhourstogotoschoolbybicycleeveryday.再问：写成It__________________________school再答：Ittakeshalfa
MymotherspendsabouthalfanhourgoingtothehospitalforworkbybikeeverydayMymotherspendsabouthalfanhouronw
ittakesmymomonehourtocook
1.Ittakesmymother3hourstodothehousework.2.Houseworkcostsmymother3hours.
设妈妈花了x天,由题意得.25x=50x-60025x=600x=2424*25=600元600+1400=2000元答：爸爸工资2000元,妈妈工资600元再问：你没有把题目看完，和下面的连在一起的
25分钟再问：过程
车轮周长=0.7*2*3.14=4.396米距离=4.396*60*15=395.64米