Jawabanmu

2014-04-16T14:07:29+07:00
(40-0) : (100-0) = (x-(-10)) : (110-(-10)) 40.120 = 100(X-(-10)) 48 = x+10 38 = x
2014-04-16T14:08:26+07:00
100-40 / 100-0 = 110-x / 110-(-10) 60/100 = 110-x/120 3/5=110-X/120 (kali silang) 360=550-5x 5x=190 x=38