ru

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Популярное Word Problems >

Find three consecutive even integers such that the sum of the smallest number and twice the middle number is 20 more than the largest number.

Решение

F in d t h ree co n sec u t i v e e v e n in t e g ers s u c h t ha t t h e s u m o f t h e s ma ll es t n u mb er an d tw i ce t h e mi dd l e n u mb er i s 20 m ore t han t h e l a r g es t n u mb er .

Решение

The numbers : 10, 12, 14

Шаги решения

Represent the numbers with

x

:

First number : x

Consecutive number 1 : x + 2

Consecutive number 2 : x + 4

A.T.Q.:

x + 2 (x + 2) = 20 + x + 4

Решить

x + 2 (x + 2) = 20 + x + 4 : x = 10

x + 2 = 10 + 2 = 12

x + 4 = 10 + 4 = 14

The numbers : 10, 12, 14

Популярные примеры

The sum of twice a number and half the number is 10 A new television set was recently purchased for the common room in a Residence Hall for 432.60 including tax. If the tax rate is 3%, find the price of the television set before taxes.Question One number is eight less than three times another number. If the sum of the numbers is 20 , find the numbers.2times the sum of 1 and some number is 0 The sum of the ages of John and Mary is 32. Four years ago, John was twice as old as Mary. Find the present age of each.