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受欢迎的 Word Problems >

The square of Kate's age 2 years from now is equal to 20 times her age 3 years ago

解答

T h e s q u a re o f K a t e^{'} s a g e 2 ye a rs f ro m n o w i s e q u a l t o 20 t im es h er a g e 3 ye a rs a g o

解答

Kate^{'} s age is : 2 (15 + 255)

求解步骤

Translate the problem into an equation:

x^{2} = 20 (x + 2) \cdot 3

求解

x, x^{2} = 20 (x + 2) \cdot 3 : x = 2 (15 + 255), x = 2 (15 - 255)

Kate^{'} s age is : 2 (15 + 255)

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