fr

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Populaire Word Problems >

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.

Solution

C h r i s i s tw i ce a s o l d a s Do n . N e x t ye a r, t h e s u m o f t h e i r a g es w i ll b e f o u r t im es a s m u c h a s Do n^{'} s a g e l a s t ye a r . F in d t h e i r p rese n t a g es .

Solution

Don^{'} s age is : 6

Chris^{'} s age is : 12

étapes des solutions

Translate the problem into an equation:

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

Solutionner pour

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

Trouver age

Don^{'} s age is : 6

Chris^{'} s age is : 12

Exemples populaires

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 rayon of 5 yards. what is the area of the skating rink The diameter of a circle is 20 m. Find the circonférence to the nearest tenth.