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Popolare 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?

Soluzione

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 ?

Soluzione

time : 2 \frac{4}{5}

Fasi della soluzione

Translate the problem into an equation:

45 x + 55 x = 280

Risolvi per

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

Convertire frazioni improprie in numeri misti

time : 2 \frac{4}{5}

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