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Beliebt Word Problems >

Two men who are traveling in opposite directions at the rate of 45 and 55 mph respectively started at the same time at the same place. In how many hours will they be 280 apart?

Lösung

Tw o m e n w h o a re t r a v e l in g in o pp os i t e d i rec t i o n s a t t h e r a t e o f 45 an d 55 m p h res p ec t i v e l y s t a r t e d a t t h e s am e t im e a t t h e s am e pl a ce . I n h o w man y h o u rs w i ll t h ey b e 280 a p a r t ?

Lösung

time : 2 \frac{4}{5}

Schritte zur Lösung

Translate the problem into an equation:

45 x + 55 x = 280

Löse nach

x, 45 x + 55 x = 280 : x = \frac{14}{5}

Wandle unechte Brüche in gemischte Zahlen um

time : 2 \frac{4}{5}

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