设药液为X千克,水为(750.5-X)千克.
X:(750.5-x)=1:1500
1500x=750.5-x
1500x+x=750.5
1501x=750.5
x=750.5÷1501
x=0.5
水为:750.5-0.5=750(千克)
(2) 设需药液为X千克.
X:540=1:1500
1500X=540
X=540.1500
X=0.36
设能配置农药X千克.
3:X=1:(1500+1)
X=1501×3
X=4503
设药液为X千克,水为(750.5-X)千克.
X:(750.5-x)=1:1500
1500x=750.5-x
1500x+x=750.5
1501x=750.5
x=750.5÷1501
x=0.5
水为:750.5-0.5=750(千克)
(2) 设需药液为X千克.
X:540=1:1500
1500X=540
X=540.1500
X=0.36
设能配置农药X千克.
3:X=1:(1500+1)
X=1501×3
X=4503