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פּוֹפּוּלָרִי Word Problems >

Leah can bicycle 92 miles in the same time as it takes her to walk 12 miles. She can ride 10 mph faster than she can walk. How fast can she walk?

פתרון

L e ah c an bi cyc l e 92 mi l es in t h e s am e t im e a s i t t ak es h er t o w a l k 12 mi l es . S h e c an r i d e 10 m p h f a s t er t han s h e c an w a l k . Ho w f a s t c an s h e w a l k ?

פתרון

walking speed : 1.5

צעדי פתרון

Translate the problem into an equation:

\frac{92}{x + 10} = \frac{12}{x}

\frac{92}{x + 10} = \frac{12}{x}, x

פתור בשביל:

x = \frac{3}{2}

פשט

walking speed : 1.5

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