5NHAN 25%COONG12 NHAN30% TRU9 NHAN50% =

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5NHAN 25%COONG12 NHAN30% TRU9 NHAN50% =

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Mackenzie 1 năm 2021-10-27T21:21:16+00:00 2 Answers 7 views 0

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    0
    2021-10-27T21:22:19+00:00

    5×25%+12×30%-9×50%

    = 125%+360%-450%

    =485%-450%

    =35%

     

    0
    2021-10-27T21:22:20+00:00

       5 × 25% + 12 × 30% – 9 × 50%

    = 5 × 0,4 + 12 × 0,3 – 9 × 0,5

    = 2 + 3,6 – 4,5

    = 5,6 – 4,5

    = 1,1

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