ں˲

һƿīˮ0.53ԪʮԪƿīˮһضǮ

ʱ䣺2020-09-09

ļм۸Ϊxīˮ۸Ϊy
X+12y=25.1
X-y=1.7

y=1.8 x=3.5

ظ:

һ˵100MLľ8-15һƿA4ֽĵ5%Լ1200š

ظ:

ר35Ա25

ظ:

īˮ۸1.8Ԫ.
īˮ۸X,ļм۸Ϊ1.7+X(Ϊһļбһƿīˮ1.7Ԫ)

1.7+X+ֳðͫ12X=25.1
X=1.8

ظ:

һ13 īˮôֻ23.4 Ȼīˮ23.413Ϊ1.8
1)īˮ۸Xֳðͫ,ļм۸Ϊ1.7+X(Ϊһļбһƿīˮ1.7Ԫ)

1.7+X+12X=25.1
X=1.8
2)īˮ۸XԪļм۸YԪ
Y - X =1.7
12X+Y=25.1
X=1.8
Y=3.5

ظ:

˵100MLľ10飬һƿԼA4ֽ300-500ӡӡôˣٴƿĶû

ظ:

һ˵100MLľ10飬ٴƿĶû塣ӡôˣһƿԼA4ֽ300-500ӡ

ظ:

⣺һƿīˮxԪ 3.5+12x=2510 12x=2510-3.5 12x=2506.5 x=208.875ָһļкʮƿīˮһ2510

ظ:

ר35Ա25

ظ:

ܸΪ ÿƿīˮ۸=100/16 10ƿīˮ۸=(100/16)*10 ιǮ=100+(100/16)*10=162.5(Ԫ) ҵĽлл

ظ:

īˮļ۸Ϊ a ,ọ̃ 3.5+12a=25.1 25.1-3.5=21.6 21.6/12=1.8Ԫ شīˮ۸Ϊÿƿ1.8Ԫ

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