ja

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

人気のある Word Problems >

Anita is twice as old as Elena now. If the sum of their ages five years ago was 20, how old are they now?

解

A ni t a i s tw i ce a s o l d a s El e na n o w . I f t h e s u m o f t h e i r a g es f i v e ye a rs a g o w a s 20, h o w o l d a re t h ey n o w ?

解

Elena^{'} s age is : 10

Anita^{'} s age is : 20

解答ステップ

Translate the problem into an equation:

2 x - 5 + x - 5 = 20

x

を解く

2 x - 5 + x - 5 = 20 : x = 10

発見する age

Elena^{'} s age is : 10

Anita^{'} s age is : 20

人気の例

Find two consecutive whole numbers that lies between. Find two consecutive whole numbers that sqrt(79) lies between.The sum of a number times 3 and 16 is at least 18 4 years ago, Rosanne won some money in the lottery and put it in a bank account that earns 3% interest compounded monthly. If Rosanne currently has 100.00 in the bank account, how much interest has she earned?Alec opened a savings account and deposited 100.00 as principal. The account earns 12% interest, compounded annually. What is the balance after 5 years?six more than the quotient of a number and 13