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פּוֹפּוּלָרִי Word Problems >

The sum of the ages of Roy and Shantel is 115 years. 10 years ago, Roy's age was 4 times Shantel's age. How old is Roy now?

פתרון

T h e s u m o f t h e a g es o f R oy an d S han t e l i s 115 ye a rs . 10 ye a rs a g o, R o y^{'} s a g e w a s 4 t im es S han t e l^{'} s a g e . Ho w o l d i s R oy n o w ?

פתרון

Roy^{'} s age is : 86

צעדי פתרון

Translate the problem into an equation:

x - 10 = 4 (115 - x - 10)

x - 10 = 4 (115 - x - 10), x

פתור בשביל:

x = 86

Roy^{'} s age is : 86

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