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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 Emma?

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 Emma?

解

Emma^{'} s age is : 24

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 Emma's age

: 24

Emma^{'} s age is : 24

人気の例

Twice the 差 of a number and 2 equals 6.six more than the quotient of a number and negative three is ten Tim is 5 years older than JoAnn. Six years from now the sum of their ages will be 78 four times a number is-8.8 Kira went for a drive in her new car. She drove for 15 miles at a speed of 100 mph. For how many hours did she drive?