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

Can some translate this in hindi?Cup-_________Table-_________Door-_________Chair-_________Knife-_________Plate-_________Car-_________Book-_________

PLEASE HELP!! WHOEVER HELPS FIRST AND GETS IT CORRECT GETS BRAILIEST!! By the way, TWO people need to answer so I can mark brainliest.

name a device that converts mechanical energy into electrical energy.

Look at image to see question

explain why there is more carbon dioxide in expired than inspired air

will you change your view to abortion when you make a girl pregnant referring to your current economic ability morals values and religion and ethical

Help ASAP 15 Points A student is conducting their science experiment on the effect of caffeine on dogs. He has 3 groups of test subjects. The 1st group of dogs

Excerpt, Theodore Roosevelt, Inaugural Address Saturday, March 4, 1905 My fellow-citizens, no people on earth have more cause to be thankful than ours, and this

How many gallons of a 42% salt solution do we need to mix with 98 gallons of a 20% salt solution so that the resulting mixture is a 28% salt solution ?

factorise the following 1. x²-2x+15.... 2. y²-19y+90