Two cars start out at two different tollgates. The cars are 644 km apart. The cars start driving towards each other. One car is driving at 69 km/h and the other car at 92 km/h.If both cars started their journey at the same time, how long will they take to pass each other?

Solução

Tw o c a rs s t a r t o u t a t tw o d i ff ere n t t o ll g a t es . T h e c a rs a re 644 km a p a r t . T h e c a rs s t a r t d r i v in g t o w a r d s e a c h o t h er . O n e c a r i s d r i v in g a t 69 km / h an d t h e o t h er c a r a t 92 km / h . I f b o t h c a rs s t a r t e d t h e i r j o u r n ey a t t h e s am e t im e, h o w l o n g w i ll t h ey t ak e t o p a ss e a c h o t h er ?

time : 4

Passos da solução

Translate the problem into an equation:

69 x + 92 x = 644

Resolver para

x, 69 x + 92 x = 644 : x = 4

time : 4