Matematika

Pertanyaan

Bantun nomor 1 sampe 10 yg uji keterampilan 4 pake cara
Bantun nomor 1 sampe 10 yg uji keterampilan 4 pake cara

1 Jawaban

  • 1. 1 jam = 60 menit
         360 km/jam = 360/60     km/menit
                             = 6 km/menit

    2. 1 km = 1000 m
        1 jam = 3600 detik
      72 km/jam = 72.000/3600  m/detik
                        =  20 m/detik

    3. 1 km = 1000 m
        1 jam = 60 menit
       2,4 km/jam = 2400/60   m/menit
                          = 40 m/menit

    4.1 m = 100 cm
       18 m/detik = 18 x 100  cm/detik
                         = 1800  cm/detik

    5. 1 m = 0,001 km
        1 detik = 1/3600 jam
       15 m/detik = 15      x 3600
                            1000  x   1         = 54 km/jam

    6.1 m = 0.001 km
       1 detik = 1/3600 jam
       50 m/detik = 5  x 3600
                           100 x 1         =  180 km/jam

    7. 1 menit = 1/60 jam
        0,5 km/menit = 5  x 60
                                 10 x 1     = 30 km/jam

    8.1 cm = 0.01 m
        1 detik = 1/60 menit
        40 cm/detik =    4  x  60
                                 10 x 1         = 24 m/menit

    9.50 mm /detik =   5   x  60
                                 100 x 1      =    3 m/menit

    10.2 cm/detik =   2   x  3600
                               100.000 x 1    =  0.072 km/jam