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受欢迎的 Word Problems >

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

解答

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

解答

the sum of their ages : 57

求解步骤

Translate the problem into an equation:

x (x - 7) = 800

求解

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

找到 the sum of their ages :

57

the sum of their ages : 57

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