Răspunsuri

2014-05-20T11:42:47+03:00


x/7=y/12=z/17

x+y+z=180

x=7k

y=12k

z=17k

7k+12+17k=180

36k=180

k=5

x=5*7=35

y=5*12=60

z=17*5=85

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