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Ajutor!!!Dau coroana!!Repedee!!!!!
a b si c​


AjutorDau CoroanaRepedeea B Si C class=

Răspuns :

a)  Timpul va fi de 4 ori mai mic, 12 : 4 = 3h

[tex]\it b)\ \ \dfrac{x}{6}=\dfrac{^{2)}14}{\ 3} \Rightarrow \dfrac{x}{6}=\dfrac{28}{6} \Rightarrow x=28[/tex]

[tex]\it\ 15+\dfrac{10}{100}\cdot15=15+\dfrac{150}{100}=15+1,50=16,50\ \ell ei[/tex]