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人気のある >

Lauren's age is half of Joe's age. Emma is four years older than Joe. The sum of Lauren, Emma, and Joe's age is 99. How old is Joe?

解

Lauren's age is half of Joe's age. Emma is four years older than Joe. The sum of Lauren, Emma, and Joe's age is 99. How old is Joe?

解

Joe^{'} s age is : 38

解答ステップ

Translate the problem into an equation:

\frac{1}{2} x + x + 4 + x = 99

x

を解く

\frac{1}{2} x + x + 4 + x = 99 : x = 38

Joe^{'} s age is : 38

人気の例

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