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Populaire 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?

Solution

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 ?

Solution

first je t^{'} s speed : 787

second je t^{'} s speed : 703

étapes des solutions

Translate the problem into an equation:

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

Solutionner pour

x, x \cdot 9 + (x - 84) \cdot 9 = 13410 : x = 787

Trouver speed

first je t^{'} s speed : 787

second je t^{'} s speed : 703

Exemples populaires

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