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O masina a parcurs 30km in 20 minute.Ce distanta va parcurge in 50 de min. daca merge la fel de repede?

Răspuns :

AlexandraCristea
 30 km.........20min
x km................50min
50 x 30 = 1500
1500 : 20 = 75 km
Raspuns : 75 km


Anna02
[tex]30~km~...~20~min.\\ x~km~~...~50~min.[/tex]
[tex] \frac{30}{x}= \frac{20}{50}\\ x= \frac{30*50}{20}\\ \boxed{x=\bold{75~km}} [/tex]

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