mariaiuga41 mariaiuga41
  • 01-10-2017
  • Mathematics
contestada

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

Respuesta :

Wings0s
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

what is the difference in height between the tallest plant and the shortest plant
Changing colors is not an indication of a chemical change. a. True b. False
what happens when we drink water and how does it work theough are bodies
2.64 × 10^-8 in standard form
Which element is excluded in the articles by Susan glaspell and the excerpt from midnight assassin ?
If y is proportional to x and y = -15 when x = -20, what is the value of x when y = 12?
A regular #2 pencil can draw a line about 35 miles long or write roughly 45,000 words. How many words will fit in one mile?
A. Ethically, is brain death not as final as cardiac death? Why or why not
What caused groups of Africans in Southern Africa to migrate north? What was the effect of this?
Language that is not based on fact cannot be damaging to other people or causes. a. True b. False