pt

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular Word Problems >

Find four consecutive even integers such that if the sum of the first and the third is multiplied by 3, the result is 28 less than 5 times the fourth.

Solução

F in d f o u r co n sec u t i v e e v e n in t e g ers s u c h t ha t i f t h e s u m o f t h e f i rs t an d t h e t hi r d i s m u lt i pl i e d b y 3, t h e res u lt i s 28 l ess t han 5 t im es t h e f o u r t h .

Solução

Sem solu \overset{c}{\c} \tilde{a} o

Passos da solução

Represent the numbers with

x

:

First number : x

Consecutive number 1 : x + 2

Consecutive number 2 : x + 4

Consecutive number 3 : x + 6

A.T.Q.:

(x + \frac{1}{3}) \cdot 3 = 5 (x + 6) - 28

Resolver

(x + \frac{1}{3}) \cdot 3 = 5 (x + 6) - 28 : x = - \frac{1}{2}

x + 2 = - \frac{1}{2} + 2 = \frac{3}{2}

x + 4 = - \frac{1}{2} + 4 = \frac{7}{2}

x + 6 = - \frac{1}{2} + 6 = \frac{11}{2}

Odd value

\frac{3}{2}

discarded

Sem solu \overset{c}{\c} \tilde{a} o

Exemplos populares

The radius of a circle is 9 in. Find its circunferência in terms of pipi.Kelly is 8 years younger than her sister. The sum of their ages is 44 years. How:old is Kelly and how old is her sister?21.Pamela is 14 years younger than Jiri. The sum of their ages is 30. What is Jiri Evangeline is 34 years older than her daughter Francesca. Three years from now, she will be thrice as old as her daughter. How old are they now?The difference of twice a number and 5 is greater than or equal to 17