fr

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Populaire Word Problems >

Two years ago, Jernie was three times as old as his sister, Cecile. In 4 years, he will be only twice his sister's age. Find their present ages.

Solution

Tw o ye a rs a g o, J er ni e w a s t h ree t im es a s o l d a s hi s s i s t er, C ec i l e . I n 4 ye a rs, h e w i ll b e o n l y tw i ce hi s s i s t e r^{'} s a g e . F in d t h e i r p rese n t a g es .

Solution

Jernie^{'} s age is : 20

Cecile^{'} s age is : 8

étapes des solutions

Translate the problem into an equation:

x - 2 = 3 (y - 2), x + 4 = 2 (y + 4)

x - 2 = 3 (y - 2), x + 4 = 2 (y + 4) : x = 20, y = 8

Jernie^{'} s age is : 20

Cecile^{'} s age is : 8

Exemples populaires

Twice the différence between a number, x, and thirty-six is three times the number A toy ball can be modeled as a sphere. Alejandro measures its rayon as 4.9 cm. Find the ball’s volume in cubic centimeters. Round your answer to the nearest tenth if necessary.A person invests 1000 dollars in a bank. The bank pays 7% interest compounded quarterly. To the nearest tenth of a year, how long must the person leave the money in the bank until it reaches 3400 dollars?a number increased by 12 is 20 A hospital administrator deposits 10, 000 into an account that earns 6% annual interest compounded monthly. In approximately how many years will the investment be worth 19, 000?