mariaiuga41 mariaiuga41

01-10-2017
Mathematics

contestada

suma a doua numere este 500 iar diferenta lor este 100. aflati numerele

Respuesta :

Wings0s Wings0s

01-10-2017

Notăm cu a,b numerele
a+b=500
a-b=100⇒a=100+b
100+b+b=500
100+2b=500
2b=400
b=200
a=200+100⇒a=300
Numerele sunt 200 şi 300

Answer Link

Otras preguntas

Does the essay examine similarities and differences? Which trait is associated with the question? A. ideas and content B. organization C. voice D. word choice

which statement best describes mutations?

A code that governs our behaviors in any certain situation is known as our code of what?a.ethicsb.virtues c.rightsd.laws

Why are the answers A and B wrong ?

The golden gate bridge was built during which important time in american history?

Match each word with its part of speech. A. Refrity B.nihilism C. Succinct Match with this speech. Adjective Noun Verb

A bookstore rents books to students for $2 per book. The cost of running the bookstore is $300 per hour. The numbers of books and the probabilities that the boo

What is the orthocenter of the triangle with two altitudes given by the lines x = -1 and y = x+1

I need help with this problem

How did Rutherford's experiments demonstrate that Thomson's model of the atom was incorrect? a. They showed that atoms have net positive charges. b. They showe