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شائع Word Problems >

Two jets leave an air base at the same time and travel in opposite directions. One jet travels 84 miles per hour faster than the other. If the two jets are13,410 miles apart after 9 hours, what is the rate of each jet?

الحلّ

Tw o j e t s l e a v e an ai r ba se a t t h e s am e t im e an d t r a v e l in o pp os i t e d i rec t i o n s . O n e j e t t r a v e l s 84 mi l es p er h o u r f a s t er t han t h e o t h er . I f t h e tw o j e t s a re 13, 410 mi l es a p a r t a f t er 9 h o u rs, w ha t i s t h e r a t e o f e a c h j e t ?

الحلّ

first je t^{'} s speed : 787

second je t^{'} s speed : 703

خطوات الحلّ

Translate the problem into an equation:

x \cdot 9 + (x - 84) \cdot 9 = 13410

x \cdot 9 + (x - 84) \cdot 9 = 13410, x

حلّ لـ:

x = 787

speed جد

first je t^{'} s speed : 787

second je t^{'} s speed : 703

أمثلة شائعة

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