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Cel mai inteligent răspuns!
2014-05-07T22:15:31+03:00
P/100·y=x
p=x·100/y
{x,y} dp{6,10}
x/6=y/10=k
x/6=k    ⇒x=6k
y/10=k⇒  y=10k
6k·100/10k=p
p=60%
b)x+y=144
6k+10k=144
16k=144
k=144/16
k=9
x=6k=6·9
x=54
y=10·9
y=90
54+90=144
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