200/(100/x)+(100/y)
来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/04 03:21:54
200/(100/x)+(100/y)200/(100/x)+(100/y)200/(100/x)+(100/y)200/(100/x+100/y)=2/(1/x+1/y)=(2xy)/(x+y)20
200/(100/x)+(100/y)
200/(100/x)+(100/y)
200/(100/x)+(100/y)
200/(100/x+100/y)=2/(1/x+1/y)=(2xy)/(x+y)
200/(100/x)+(100/y)=2x+100/y
200/(100/x)+(100/y)
14x+4y+z=200,x+y+z=100求解x,y,z
200(x-y)=400 100(x+y)=400,求X和Y
二元一次方程帮忙解下(1)12.5x+13.3y-200=12x+13.5y12.9x+13.9y-1300=12.5x+13.3y x=?y=?(2)200x+150y=5500150x+100y=4000 x=?y=?(3)x+y=68100x+y-100y-x=2178 x=?y=?
若x、y互为相反数,则x+2x+3x+...100x+100y+99y+98y+...+y
X+Y=7(100X+Y)-(10Y+X)=(10Y+X)-(10X+Y)
怎样算200/[100(x+y)/(xy)]
328-y/y x 100%=-18%
If two even number x,y satisfy equation x×x+100=y×y,x
已知y=100-37353/x+200 求X=?已知y=100-37353/x+200 求X=?
求 X Y公式X+Y=50Y/X=3X+Y=100Y/X=3求 x y...公式
x+y+2x-13=100 2x+5y+2x-13=200 然后怎样解出x和y.)
100(x+y)/200与200xy/100(x+y)的大小
x+y=200 (100×1×x):(100×1.5×y)=3:4
解方程组{x+y=200,100x:(1.5×100y)=3:
解方程组{x+y=200,100x:(1.5×100y)=3:说明白点
x+y=200和100x:1.5*100y=1:2怎么解.快
x+y=200 (x-100)2+(y-100)2=8