vi

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Phổ biến Word Problems >

Marge is twice as old as Consuelo. The sum of their ages seven years ago was thirteen. How old are they now?

Lời Giải

M a r g e i s tw i ce a s o l d a s C o n s u e l o . T h e s u m o f t h e i r a g es se v e n ye a rs a g o w a s t hi r t ee n . Ho w o l d a re t h ey n o w ?

Lời Giải

Consuelo^{'} s age is : 9

Marge^{'} s age is : 18

Các bước giải pháp

Translate the problem into an equation:

2 x - 7 + x - 7 = 13

Giải

x, 2 x - 7 + x - 7 = 13 : x = 9

Tìm age

Consuelo^{'} s age is : 9

Marge^{'} s age is : 18

Ví dụ phổ biến

In 24 minutes, Daniel can run 3 miles. At this rate, how many minutes will it take Daniel to run 26.2 miles?The Vasquez family drove 165 miles in 3 hours. At this same rate, how many miles could they travel in 8 hours Keiko is riding her bicycle. She rides for 17.5 kilometers at a speed of 7 kilometers per hour. For how many hours does she ride?If five is subtracted from three times a certain number, the result is 10. What is the number?the cube root of the square of a number decreases by 2 is equal to 4. Find the number