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daca 15/x = 20/1 , atunci x este egal cu

Răspuns :

[tex] \frac{15}{x} =\frac{20}{1} =\ \textgreater \ \\ 20x=15=\ \textgreater \ x=1,(3)[/tex]
[tex] \frac{15}{x} = \frac{20}{1} =\ \textgreater \ x= \frac{15*1}{20} \ \textgreater \ x= \frac{3}{4} \\\\ Proba: \frac{3}{4}*20=15\\\\ \frac{60}{4} =15\\\\ 15=15[/tex]