Question

Tolong dijawab pertanyaan mtk no 4 sama no 5

Answer 1

Verified answer

Perbandingan = 3 : 5 : 7
jumlah perbandingan = 15
jumlah uang keseluruhan 120000
uang a = 3/15 × 120000 = 24000
uang b = 5/15 × 120000 = 40000
uang f = 7/15 × 120000 = 56000

Answer 2

4) Jumlah perbandingan = 3 + 6 + 7
                                  
                                        = 16

   Uang a = 3 / 16 x 120.000
          
                = 90.000 / 4

                = Rp 22.500,00

   Uang b = 6 / 16 x 120.000
                = Rp 45.000,00

   Uang  f = 7 / 16 x 120.000
                = Rp 52.500,00

5) a x 9/20 = b .... Persamaan 1

     b x 2/5  = c ..... Persamaan 2
 
     c = Rp 19.800,00

     Persamaan 2 =
      b x 2/5 = 19.800
     
      b = 19.800 : 2/5

      b = 19.800 x 5/2
    
         = Rp 49.500

      Persamaan 1=
     a x 9/20 = b

     a x 9/20 = 49.500
    
     a = 49.500 : 9/20
       
     a = 49.500 x 20/9

        = Rp 110.000,00

Semoga membantu