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인기 있는 Word Problems >

Alvin is 9 years older than Elga. The sum of their ages is 75. What is Elga's age?

해법

A l v in i s 9 ye a rs o l d er t han El g a . T h e s u m o f t h e i r a g es i s 75. Wha t i s El g a^{'} s a g e ?

해법

Elga^{'} s age is : 33

솔루션 단계

Translate the problem into an equation:

x + x - 9 = 75

x

해결 대상

, x + x - 9 = 75 : x = 42

Elga's age 찾다 :

33

Elga^{'} s age is : 33

인기 있는 예

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 234. How old is Emma?4 times a number, plus 9 4 times a number.the sum of two consecutive odd integers is 144 Gwen opened a savings account and deposited 500.00 as principal. The account earns 3% interest, compounded annually. What is the balance after 8 years?