Question

suma a trei numere consecutive este 519. afla fiecare numar

Answer 1

a, b=a+1, c=a+2

a+a+1+a+2=519
3a=516
a=172
b=173
c=174

Answer 2

[tex]-notatii- I - primul.numar II - al.doilea.numar III - al.treilea.numar [/tex]

$METODA. I ( METODA.GRAFICA.SAU.FIGURATIVA )$


[tex]I / ----- / [/tex]


$II / ----- / + 1$  
 

$III / ----- / + 1 + 1$
         Ф $REZOLVARE :$

[tex] 1) 519 - ( 1 * 3 ) = 519 - 3 = 516 ( 3.parti.egale.cu.numarul.mic ) 2) 516 : 3 = 172 ( reprezinta.un.segment , primul.numar ) 3) 172 + 1 = 173 ( al.doilea.numar ) 4) 172 + 1 + 1 = 173 + 1 = 174 ( al.treilea.numar ) [/tex]
         Ф $RASPUNS : I - 172 ; II - 173 ; III - 173 .$