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人気のある Word Problems >

amy is 7 years older than beth. the product of their ages is 800. what is their combined age

解

am y i s 7 ye a rs o l d er t han b e t h . t h e p ro d u c t o f t h e i r a g es i s 800. w ha t i s t h e i r co mbin e d a g e

解

the sum of their ages : 57

解答ステップ

Translate the problem into an equation:

x (x - 7) = 800

x

を解く

x (x - 7) = 800 : x = 32, x = - 25

発見する the sum of their ages :

57

the sum of their ages : 57

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