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͸֧9Ԫ 9000

ãǾ򳴹ʵսңʵһҪ˼10Ԫ9Ԫ˵1000Ԫ9000Ԫ6Ԫ뻹9000Ԫô11%һͿԻر6ԪĹɼ11%Ƕ٣673ҡ Ͷʿֳ

ƻ8Ԫ2ǧˣô4Ԫ/kg 㽶9Ԫ3ǧˣô3Ԫ/kg 6000=6kg ƻ۸Ϊ6x4=24Ԫ 9000=9kg 㽶۸Ϊ9x3=27Ԫ ܼΪ24+27=51Ԫ

9000Ǽ˰ϼƣô9000/1.09*0.09=743.12Ԫ Ʊ˰8256.88 Ԫ 9% ˰Ϊ743.12Ԫ

ҪһõЩŵЩDzŵģŵһҪŵʵ˵ˣûϵΪҲڸָĽǷɲϵģDzᱬͨѶ¼һͨͨѶ¼ϵĺ...

460002000=12Ԫ 990003000=27Ԫ 60002000˵36000˵ļ۸Ҳ2000˵ļ۸3 㽶ͬ

Ԫ x * y = 3000 x*1.2 * 2y+300=9000 xy=3000 1.2x*(2y+300)=9000 ַ 9Ԫۣx9 x=5 y=600 ͿԽ㣬 һ Dzţxyֵ ...

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Ӧд9000.00Ԫ

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