早教吧作业答案频道 -->英语-->
一道G数学题ahikerwalkingataconstantrateof4milesperhourispassedbyacyclisttravelinginthesamedirectionalongthesamepathataconstantrateof20mileperhour.thecycliststopstowaitforthehiker5minutesafterpassingh
题目详情
一道G数学题
a hiker walking at a constant rate of 4 miles per hour is passed by a cyclist traveling in the same direction along the same path at a constant rate of 20 mile per hour.the cyclist stops to wait for the hiker 5 minutes after passing her,while the hiker continues to walk at her constant rate.how many minutes must the cyclist wait until the hiker catches up?
求题意,有点搞不清楚题目具体流程,
a hiker walking at a constant rate of 4 miles per hour is passed by a cyclist traveling in the same direction along the same path at a constant rate of 20 mile per hour.the cyclist stops to wait for the hiker 5 minutes after passing her,while the hiker continues to walk at her constant rate.how many minutes must the cyclist wait until the hiker catches up?
求题意,有点搞不清楚题目具体流程,
▼优质解答
答案和解析
步行者A以4米每秒的速度前进,骑车者B以20米每秒同向同路程的前进,求当骑车者B超过步行者A5分钟后等A,要等多长时间
(20*5-4*5)/4=20分钟
(20*5-4*5)/4=20分钟
看了 一道G数学题ahikerwa...的网友还看了以下：
物理电学问题,求解答答案（1）Q=q（2）R<r：E=q/（4πεr*r）：R>=r：E=qr*r/ 2020-03-31 …
设A是n阶矩阵A^2=E,证明r(A+E)+r(A-E)=n,的一步证明过程不懂由A^2=E,得A 2020-05-14 …
将字母组成单词,并译成汉语1.m,e,r,m,u,s,汉语2.u,l,t,e,c,u,r,汉语3. 2020-06-04 …
E^2*R/(R+r)^2=E^2/(R-r)^2/R+4r(某公式推导最后两行）本人只得：=E^ 2020-06-07 …
matlab求解二阶导数方程,四个方程四个未知量>>symst>>E=32;G=10.81;b=2 2020-07-19 …
设函数f(x)=lnx+m/x,m∈R(1)当m=e(e为自然对数的底数时),求f(x)的极小值设 2020-07-26 …
下列对应关系是从集合M到集合N的一一映射的是（）A．M=N=R，f：x→y=-1x，x∈M，y∈N 2020-07-30 …
对的打对错的打错gowithuslikecollectdollsturntoleftonfootgo 2020-11-01 …
从E-R图导出关系模型时,如果两实体间的联系是m:n的,下列说法正确的是()从E-R图导出关系模型时 2020-11-02 …
(e)(a)(r)thush(e)(r)sh(i)(r)tl(e)(a)(r)ncol(o)(u)( 2020-11-27 …