若x/3=y/4=z/5,求x+y+z/3x-2y+z的值.
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:数学作业 时间:2024/04/28 23:54:53
若x/3=y/4=z/5,求x+y+z/3x-2y+z的值.
有大赏100
有大赏100
设x/3=y/4=z/5=m
则x=3m,y=4m,z=5m
则x+y+z/3x-2y+z=(3m+4m+5m)/(9m-8m+5m)=12/6=2
则x=3m,y=4m,z=5m
则x+y+z/3x-2y+z=(3m+4m+5m)/(9m-8m+5m)=12/6=2
若x/3=y/4=z/5,求x+y+z/3x-2y+z的值.
已知x::y:z=3:4:5,(1)求x+y分之z的值;(2)若x+y+z=6,求x,y,z.
若x:y:z=3:4:5=6,求x-y+z分之x+y-z的值
若x:y:z=3:4:5且x+y+z=24,求x、y、z的值
若X:y:Z=3:4:5,且X+Y+Z=24,求X、Y、Z的值
若x:y:z=2:3:4,求x+y+z/x-2y+3z的值
x/3=y/4=z/5,求x+y+z/3x-2y+z的值,
若x/2=y/3=z/4不等于0,求x+y+z/x+y-z的值
已知x/4=y/5=z/6 求x+y+z/3x-2y+z的值
已知x/4=y/5=z/6,求x+y+z/3x-2y+z的值.
已知x+4y+3z=3x-2y-5z=0,求x+2y-z/2x-3y+7z的值
若2分之x+y=3分之y+z=5分之x+z 且x+y+z=18 求x,y,z的值