es

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

Chris is twice as old as Don. Next year, the sum of their ages will be four times as much as Don's age last year. Find their present ages.

Solución

Chris is twice as old as Don. Next year, the sum of their ages will be four times as much as Don's age last year. Find their present ages.

Solución

Don^{'} s age is : 6

Chris^{'} s age is : 12

Pasos de solución

Translate the problem into an equation:

2 x + 1 + x + 1 = 4 (x - 1)

Resolver para

x, 2 x + 1 + x + 1 = 4 (x - 1) : x = 6

Hallar age

Don^{'} s age is : 6

Chris^{'} s age is : 12

Ejemplos populares

A mother is currently 7 times older than her son. In 3 years time, she will be 5 times older than her son.Twenty is the product of 4 and a number The perimeter of a rectangular painting is 242cm :If the width of the painting is 55cm , what is its length?mary skates at a circular rink that has a radio of 5 yards. what is the area of the skating rink The diameter of a circle is 20 m. Find the circunferencia to the nearest tenth.