pt

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular Word Problems >

st number decreased by a second number is-30 . The first number increased by twice the second number is 4 .

Solução

s t n u mb er d ecre a se d b y a seco n d n u mb er i s - 30 . T h e f i rs t n u mb er in cre a se d b y tw i ce t h e seco n d n u mb er i s 4 .

Solução

The numbers : - 18 \frac{2}{3}, 11 \frac{1}{3}

Passos da solução

Represent the numbers with

x and y

:

number 1 : x

number 2 : y

A.T.Q.:

x - y = - 30

x + 2 y = 4

x - y = - 30, x + 2 y = 4 : x = - \frac{56}{3}, y = \frac{34}{3}

Converter as frações impróprias em números mistos:

\frac{56}{3} = 18 \frac{2}{3}

Converter as frações impróprias em números mistos:

\frac{34}{3} = 11 \frac{1}{3}

The numbers : - 18 \frac{2}{3}, 11 \frac{1}{3}

Exemplos populares

nine subtracted from the product of 2 and a number is 17 If 2500 is invested in an account that pays interest compounded continuously, how long will it take to grow to 5000 at 3.75%?George is 7 years older than Dallas. In 7 years the sum of their ages will be 63. How old is George now? years old The sum of two consecutive even integers is 126.The product of six and a number, is ten.