he

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

פּוֹפּוּלָרִי Word Problems >

The sum of two numbers is 10 and the sum of their reciprocals is 5/12 Find the numbers.:Correct:

פתרון

T h e s u m o f tw o n u mb ers i s 10 an d t h e s u m o f t h e i r rec i p roc a l s i s \frac{5}{12} F in d t h e n u mb ers . : C orrec t :

פתרון

The numbers : 6, 4

צעדי פתרון

Represent the numbers with

x and y

:

number 1 : x

number 2 : y

A.T.Q.:

x + y = 10

\frac{1}{x} + \frac{1}{y} = \frac{5}{12}

x + y = 10, \frac{1}{x} + \frac{1}{y} = \frac{5}{12} : (x = 6, y = 4 x = 4, y = 6)

Discard duplicated solutions

The numbers : 6, 4

דוגמאות פופולריות

Andy is twice as old as Eda. In 6 years, the sum of their ages will be 60. How old are they at present 80% of what number is 120 An investment of 8,600.00 at 4.7% p.a. compounded quarterly is now valued at12,590.72. How long ago was the investment made?the perimeter of a square is 2sqrt(3)cm. Find its area The battery life of a certain cell phone starts at 8 hours. The battery life decreases at an annual rate of 30%.a. Write a function that represents the battery life y after x years.