Jawabanmu

Jawaban paling cerdas!
2014-08-06T09:21:36+07:00
1. 4/5 = x/10
        x = 4/5 * 10
        x = 4 * 2
        x = 8
2. 15/100 = 40/x
     x (15/100) = 40
         x = 40 * 100/15
         x = 400/15
         x = 26 2/3
3. x/16 = 8/32
         x = 8/32 * 16
         x = 8/2
         x = 4
4. 10/x = 18/25
       10 = 18/25 * x
     x * 18/25 = 10
         x = 10 * 25/18
         x = 250/18
         x = 13 8/9
5. 21/49 = x/63
    21/29 * 63 = x
         x = 21/49 * 63
         x = 21/7 * 9
         x = 189/7
         x = 27
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