Tolong beri caranya dan jawab secepatnya

1. dikali silang aja =
      16a= 80
          a=80/16
           a=5

2. 9b=15x3
    9b=45
     b= 5

3. 25c=100
      c= 100/25=4

4. 57xd=18x95
   57d=1710
   d=1710/57
   d=30

5. 2e=1170
    e=585

jadiin jawaban terbaik ya

Please, let me answer your question :)
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[tex] \frac{3}{9} = \frac{b}{15} = 9b = 45 = \frac{45}{9} = 5[/tex]

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[tex] \frac{c}{20} = \frac{5}{25} = 25c = 100 \\ \\ c = \frac{100}{25} = 4[/tex]

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[tex] \frac{18}{d} = \frac{57}{95} = 57d = 1710 \\ \\ d = \frac{1710}{57} = 30[/tex]

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[tex] \frac{2}{130} = \frac{9}{e} = 2e = 1170 \\ \\ e = \frac{1170}{2} = 585[/tex]

Kamu hanya perlu mengkali silangkan pecahan. Misalnya 3 x 15 dan 9 x b. Hasilnya = 9b = 45. Lalu kamu pindah ruaskan dengan cara membagi. Jadinya b = 45/9 = 5.
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Heil Manstein!