Răspunsuri

2014-04-27T22:28:03+03:00
X/3=y/4=k
x=3k
y=4k

3*3k+2*4k /5*4k- 2*3k=
9k+8k/20k-6k=
9k+2k/5k-6k=
3k+2/5=
3k=-2/5
k=-2/5 *1/3
k=-2/15
 valoarea raportului= -2/15


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