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受欢迎的 Word Problems >

Amy is 9 years younger than beth. the product of their ages is 252. what is their combined total age

解答

A m y i s 9 ye a rs yo u n g 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 252. w ha t i s t h e i r co mbin e d t o t a l a g e

解答

Amy^{'} s age is : 12

Beth^{'} s age is : 21

求解步骤

Translate the problem into an equation:

x (x + 9) = 252

求解

x, x (x + 9) = 252 : x = 12, x = - 21

找到 age

Amy^{'} s age is : 12

Beth^{'} s age is : 21

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