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 Word Problems >

The sum of twice a positive integer and four times the reciprocal of the integer is 9. Find the integer.

解

T h e s u m o f tw i ce a p os i t i v e in t e g er an d f o u r t im es t h e rec i p roc a l o f t h e in t e g er i s 9. F in d t h e in t e g er .

解

The number : 4 or \frac{1}{2}

解答ステップ

Represent the number with

x

A.T.Q.:

2 x + 4 \cdot \frac{1}{x} = 9

x

を解く

2 x + 4 \cdot \frac{1}{x} = 9 : x = 4, x = \frac{1}{2}

The number : 4 or \frac{1}{2}

人気の例

Bob's sister is 6 years older than twice Bob's age. The sum of their ages is 42 . How old is Bob?Maryl is 40 years older than Shaira. 10 years ago, the sum of their ages was 40.If 3 times a number is increased by 22 , the result is 14 less than 7 times the number. What is the number?Maryl is 5 years younger than Shaira. 4 years ago, the sum of their ages was 12.There are two numbers whose sum is 53. Three times the smaller number is equal to 19 more than the larger number. What are the numbers?