Matematika

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tolong di bantu yah kak..
tolong di bantu yah kak..

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  • 17. 77000 = 11/100 × n/12 × 1200000
    = 77000 = 11000 × n
    = n = 77000 ÷ 11000
    n = 7 bulan

    18. 1200000 + 60000 ÷ 10
    =1260000/10 = 126000
    a = 126000

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