it

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popolare Word Problems >

Six consecutive even numbers add up to 90 . What are the numbers?

Soluzione

S i x co n sec u t i v e e v e n n u mb ers a dd u p t o 90 . Wha t a re t h e n u mb ers ?

Soluzione

The numbers : 10, 12, 14, 16, 18, 20

Fasi della soluzione

Represent the numbers with

x

:

First number : x

Consecutive number 1 : x + 2

Consecutive number 2 : x + 4

Consecutive number 3 : x + 6

Consecutive number 4 : x + 8

Consecutive number 5 : x + 10

A.T.Q.:

x + x + 2 + x + 4 + x + 6 + x + 8 + x + 10 = 90

Risolvi

x + x + 2 + x + 4 + x + 6 + x + 8 + x + 10 = 90 : x = 10

x + 2 = 10 + 2 = 12

x + 4 = 10 + 4 = 14

x + 6 = 10 + 6 = 16

x + 8 = 10 + 8 = 18

x + 10 = 10 + 10 = 20

The numbers : 10, 12, 14, 16, 18, 20

Esempi popolari

seven less than twice a certain number is 3 more than the same number what is the number the sum of a number times 6 and 25 is at most 26 the differenza of two numbers is-8 and the sum of their squares is 50.Find the numbers An ordinary die is thrown. Find the probability that the number obtained is even or greater than 4?The circonferenza of a circle is 8pipi ft. Find its radius, in feet.