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人気のある Word Problems >

Lauren's age is half of Joe's age. Emma is four years younger than Joe. The sum of Lauren, Emma, and Joe's age is 54. How old is Joe?

解

L a u re n^{'} s a g e i s ha l f o f J o e^{'} s a g e . E mma i s f o u r ye a rs yo u n g er t han J oe . T h e s u m o f L a u re n, E mma, an d J o e^{'} s a g e i s 54. Ho w o l d i s J oe ?

解

Joe^{'} s age is : 23 \frac{1}{5}

解答ステップ

Translate the problem into an equation:

\frac{1}{2} x + x - 4 + x = 54

x

を解く

\frac{1}{2} x + x - 4 + x = 54 : x = \frac{116}{5}

仮分数を帯分数に変換する:

23 \frac{1}{5}

Joe^{'} s age is : 23 \frac{1}{5}

人気の例

Mary’s father is three times as old as Mary. Six years ago, father’s age was five times Mary’s age. How old is her father now?Adam is three years younger than twice Bob's age. In 5 years, Adam's age will be 8 years more than Bob's age. What are their 2 ages?Bill is twice as old as Bob. Bob is 3 years old. How old will Bill be in 5 years?Maria’s brother, Joe, is three years less than twice Maria’s age. Joe is 19 years old. How old is Maria?Jeff’s age is 6 more than 3 times Amber’s age. If Jeff is 27, how old is Amber?