ja

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

人気のある >

Of the three consecutive natural numbers, five times the smallest number is 20:more than three times the greatest number, find the middle number.

解

Of the three consecutive natural numbers, five times the smallest number is 20:more than three times the greatest number, find the middle number.

解

The number : 5

解答ステップ

Represent the numbers with

x

:

First number : x

Consecutive number 1 : x + 1

Consecutive number 2 : x + 2

A.T.Q.:

5 x = 20

解く

5 x = 20 : x = 4

x + 1 = 4 + 1 = 5

x + 2 = 4 + 2 = 6

The number : 5

人気の例

Tony's age is 28 years older than Mack. 5 years ago, Tony was 5 times older than Mack. Find their present ages.The 円周 of a circle is 13pi m. What is the area, in square meters? Express your answer in terms of pipi.A deposit of \$5,000 is made in a trust fund that pays 6.75% interest, compounded continuously. In 50 years how much would the trust fund be worth?Regan opened a savings account and deposited 1,000.00. The account earns 2% interest, compounded quarterly. If she wants to use the money to buy a new bicycle in 2 years, how much will she be able to spend on the bike?Feng went shopping for a new pair of pants because of a sale. The store was offering a 40% discount. If the price on the tag was 33, what would be the price after the discount but before tax, to the nearest dollar and cent?