31.25:a:13.75=100:9.6:b怎么做?急!求a/b各为几(是方法).急!
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![31.25:a:13.75=100:9.6:b怎么做?急!求a/b各为几(是方法).急!](/uploads/image/z/10197626-50-6.jpg?t=31.25%3Aa%3A13.75%3D100%3A9.6%3Ab%E6%80%8E%E4%B9%88%E5%81%9A%3F%E6%80%A5%21%E6%B1%82a%2Fb%E5%90%84%E4%B8%BA%E5%87%A0%EF%BC%88%E6%98%AF%E6%96%B9%E6%B3%95%EF%BC%89.%E6%80%A5%21)
31.25:a:13.75=100:9.6:b怎么做?急!求a/b各为几(是方法).急!
31.25:a:13.75=100:9.6:b怎么做?
急!
求a/b各为几(是方法).急!
31.25:a:13.75=100:9.6:b怎么做?急!求a/b各为几(是方法).急!
第一步100/31.25=3.2
第二步a=9.6/3.2=3
b=13.75*3.2=44
答案a=3,b=44
A-A=0 A+A=?A÷A=1 A×A=?(A+A)+(A-A)+(AxA+A÷A)=100 A=?
a-2a+3a-4a+5a-6a+7a-8a+9a-10a+11a.+99a-100a=
31.25:a:13.75=100:9.6:b怎么做?急!求a/b各为几(是方法).急!
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