he

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

פּוֹפּוּלָרִי Word Problems >

Six years ago, Sally was 12 years younger than thrice her sister's age. How old is Sally if she is twice as old as her sister now?

פתרון

S i x ye a rs a g o, S a ll y w a s 12 ye a rs yo u n g er t han t h r i ce h er s i s t e r^{'} s a g e . Ho w o l d i s S a ll y i f s h e i s tw i ce a s o l d a s h er s i s t er n o w ?

פתרון

Sally^{'} s age is : 48

צעדי פתרון

Translate the problem into an equation:

2 x - 6 + 12 = 3 (x - 6)

2 x - 6 + 12 = 3 (x - 6), x

פתור בשביל:

x = 24

Sally's age מצא את:

48

Sally^{'} s age is : 48

דוגמאות פופולריות

Find three consecutive odd integers whose sum is −249 Bill is four times as old as Lily. Two years from now, Bill will be nine times as old as Lily was two years ago. Find their present ages.The radius of a circle is 19 in. Find its circumference in terms of pipi.The radius of a circle is 5 ft. Find its area in terms of pipi.The area of the square pool on Mr. Carr's vacation was 225 ft2. How long was one side of the pool?