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인기 있는 Word Problems >

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?

해법

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 o l d 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 E mma ?

해법

Emma^{'} s age is : 24

솔루션 단계

Translate the problem into an equation:

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

x

해결 대상

, \frac{1}{2} x + x + 4 + x = 54 : x = 20

Emma's age 찾다 :

24

Emma^{'} s age is : 24

인기 있는 예

Twice the 차이 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?