a*0.01=(a-200)*0.25如题,求a的值a*c=(a-b)*0.25求a a*c=(a-b)*0.25a*c=a*0.25-b*0.250.25*a-a*c=b*0.25a*(0.25-c)=b*0.25a=b*0.25/(0.25-c)我感觉上面错误了 a×0.01=(a-200)×0.250.01a=0.25a-500.24a=50a=625∕3 a=625∕3 625是如何得出的啊

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a*0.01=(a-200)*0.25如题,求a的值a*c=(a-b)*0.25求aa*c=(a-b)*0.25a*c=a*0.25-b*0.250.25*a-a*c=b*0.25a*(0.25-c)

a*0.01=(a-200)*0.25如题,求a的值a*c=(a-b)*0.25求a a*c=(a-b)*0.25a*c=a*0.25-b*0.250.25*a-a*c=b*0.25a*(0.25-c)=b*0.25a=b*0.25/(0.25-c)我感觉上面错误了 a×0.01=(a-200)×0.250.01a=0.25a-500.24a=50a=625∕3 a=625∕3 625是如何得出的啊
a*0.01=(a-200)*0.25
如题,求a的值
a*c=(a-b)*0.25
求a
a*c=(a-b)*0.25
a*c=a*0.25-b*0.25
0.25*a-a*c=b*0.25
a*(0.25-c)=b*0.25
a=b*0.25/(0.25-c)
我感觉上面错误了
a×0.01=(a-200)×0.25
0.01a=0.25a-50
0.24a=50
a=625∕3
a=625∕3 625是如何得出的啊,3又是如何得来的?
a*c=(a-b)*0.25
ac=0.25a-0.25b
(1-0.25)a=-0.25b-c
0.75a=0.25b-c
a=(1/3)b-(4/3)c《123法国版的答案》
按上式c=0.01 b=200结果a=66.65
但结果是A=208.33,好像也是错误

a*0.01=(a-200)*0.25如题,求a的值a*c=(a-b)*0.25求a a*c=(a-b)*0.25a*c=a*0.25-b*0.250.25*a-a*c=b*0.25a*(0.25-c)=b*0.25a=b*0.25/(0.25-c)我感觉上面错误了 a×0.01=(a-200)×0.250.01a=0.25a-500.24a=50a=625∕3 a=625∕3 625是如何得出的啊
a*c=(a-b)*0.25
ac=0.25a-0.25b
(1-0.25)a=-0.25b-c
0.75a=0.25b-c
a=(1/3)b-(4/3)c
a×0.01=(a-200)×0.25
0.01a=0.25a-50
0.24a=50
a=50/0.24
a=625∕3

a=625/3=208.33

a*0.01*100=(a-200)*0.25*100
a=25a-5000
24a=5000
a=625/3