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인기 있는 Word Problems >

The present age of Alex is four times the present age of his son. Five years ago, the sum of their ages was 35 years.Find their present ages.

해법

T h e p rese n t a g e o f A l e x i s f o u r t im es t h e p rese n t a g e o f hi s so n . F i v e ye a rs a g o, t h e s u m o f t h e i r a g es w a s 35 ye a rs . F in d t h e i r p rese n t a g es .

해법

Son^{'} s age is : 9

Alex^{'} s age is : 36

솔루션 단계

Translate the problem into an equation:

4 x - 5 + x - 5 = 35

x

해결 대상

, 4 x - 5 + x - 5 = 35 : x = 9

age 찾다

Son^{'} s age is : 9

Alex^{'} s age is : 36

인기 있는 예

60 is 24% of what number what is the balance after 7 years if 54000 is invested at 6% compound annually find the 원둘레 of a circle having 3.1 cm of diameter When a number is increased by 9.5%, the result is 58. What is the original number to the nearest tenth?The sum of two numbers is 74 and their 차이 is 24. Find the numbers