200/(100/x)+(100/y)
1个回答
200/(100/x+100/y)=2/(1/x+1/y)=(2xy)/(x+y)
200/(100/x)+(100/y)=2x+100/y
相关问题
x+y=200 100x:200y=3:4
(X-100)*10%+100={X-[(X-100)*10%+100]-200}*10%+200
解方程组{x+y=200,100x:(1.5×100y)=3:
(100-1)x(100-1)+200-1=100x100-100-100+1+200-1 =10000但是为什么100
30/100x+70/100【200-x】=200×54/100 解X
二元一次方程X+Y=200 100X:100Yx2=3:4
怎样算200/[100(x+y)/(xy)]
200(x-y)=400 100(x+y)=400,求X和Y
解方程6(X-100)=X+200+100
100+1/10(x-100)=200+1/10[x-200-100-1/10(x-100)] 好的话可以给你悬赏金的~