Jawabanmu

Jawaban paling cerdas!
2014-08-17T17:23:14+07:00
1.st/rq = ps/pq
8/12 = 10/pq
8pq = 10 × 12
8pq = 120
pq = 120/8
pq = 15

2. 6/9 = 10/10+x
6(10+x) = 10 × 9
60+6x = 90
6x = 90- 60
6x = 30
x = 30/6
x = 5
1 5 1
2014-08-17T17:26:24+07:00
Nomer 3 jawabannya 5+10 = 15
nomer 7 jawabannya b