it

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popolare Word Problems >

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

Soluzione

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

Soluzione

Sally^{'} s age is : 12 \frac{12}{121}

Fasi della soluzione

Translate the problem into an equation:

2 x - 6 = 123 (x - 6)

Risolvi per

x, 2 x - 6 = 123 (x - 6) : x = \frac{732}{121}

Trova Sally's age

: 12 \frac{12}{121}

Sally^{'} s age is : 12 \frac{12}{121}

Esempi popolari

you won 500 in an art contest. you deposit the money into an account that pays 7% interest. how much money will you have after 4 years?76 is 10% of what number What's the circonferenza of this circular pond if its diameter is 3.8 m? to 1 decimal place.75% OFF the original price! The original price of a bottle of ketchup is 0.80. What is the sale price?six increased by the product of a number and 10 is least-29