vi

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Phổ biến Word Problems >

he sum of a number and twice its reciprocal is 9/2

Lời Giải

h e s u m o f a n u mb er an d tw i ce i t s rec i p roc a l i s \frac{9}{2}

Lời Giải

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

Các bước giải pháp

Represent the number with

x

A.T.Q.:

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

Giải

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

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

Ví dụ phổ biến

25 less than three times a number is at least 26 A car is travelling at a speed of 48mph. How far will it travel in 0.5 hours the hiệu between a number and ten Rita is riding her bicycle. She rides 76.8 kilometers in 6 hours. What is her speed?a. Find the True discount, Banker's Discount and Banker's Ga due in 9 months at 5% per annum.