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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 54. How old is bob?

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 54. How old is bob?

解

Joe^{'} s age is : 20

Emma^{'} s age is : 24

Lauren^{'} s age is : 10

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 = 20

発見する age

Joe^{'} s age is : 20

Emma^{'} s age is : 24

Lauren^{'} s age is : 10

人気の例

The second of two numbers is 7 times the first. Their sum is 72. Find the numbers two sevenths of a number is negative eight what is the number kevin is 6 years older than timothy. 4 years ago, Kevin was twice as old as timothy. Find their present ages Austin is 7 years younger than Clarissa and Austin is 2 years younger than Shaira. If the sum of their ages is 30, find each person's age.Kevin is 3 times as old as Daniel. 4 years ago, Kevin was 5 times as old as Daniel.