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受欢迎的 Word Problems >

Two hikers are 44 miles apart and walking toward each other. They meet in 10 hours. Find the rate of each hiker if one hiker walks 2.2 mph faster than the other.

解答

Tw o hik ers a re 44 mi l es a p a r t an d w a l kin g t o w a r d e a c h o t h er . T h ey m ee t in 10 h o u rs . F in d t h e r a t e o f e a c h hik er i f o n e hik er w a l k s 2.2 m p h f a s t er t han t h e o t h er .

解答

first hike r^{'} s speed : 3.3

second hike r^{'} s speed : 1.1

求解步骤

Translate the problem into an equation:

x \cdot 10 + (x - 2.2) \cdot 10 = 44

求解

x, x \cdot 10 + (x - 2.2) \cdot 10 = 44 : x = \frac{33}{10}

找到 speed

first hike r^{'} s speed : 3.3

second hike r^{'} s speed : 1.1

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