Matematika

Pertanyaan

minta bantuan.....kak
minta bantuan.....kak

2 Jawaban

  • misal:
    koper= k
    tas= t
    2k+5t=600.000|x3
    3k+2t=570.000|x2
    ______________
    6k+15t=1.800.000
    6k+4t=1.140.000
    ______________-
    11t=660.000
    t=660.000:11
    =60.000<HARGA 1 TAS

    2k+5x60.000=600.000
    2k+300.000=600.000
    2k=600.000-300.000
    2k=300.000
    k=150.000

    harga koper dan 2 tas
    =150.000+120.000
    =270.000(B)
  • Jawabannya:
    11 t=660000
    t= 660000/11
    t= 60000 ----- harga 1 tas

    2k+5.600000=600000
    2k+300000=600000
    2k= 600000-300000
    2k= 300000
    k= 300000/2
    k= 150000 ----- harga 1 koper

    Harga koper dan 2 tas
    = 150000+120000
    = Rp 270000------ B

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