Question

va rog am nevoie urgent
dau coroană promit
cerinta este: Care sunt cele două numere?

Answer 1

|____|____|____| primul nr

|____|____|____|____| al doilea nr

3+4=7 (segmente egale)

105:7=15 (valoarea unui segment)

primul nr =3×15=45

al doilea nr =4×15=60

verificare:
45+60=105

Answer 2

   
[tex]\displaystyle\\ \left \{{{x+y=105}\atop{\dfrac{2}{3}x=\dfrac{1}{2}y}}\right.\\\\ \left\{{{x+y=105}\atop{\dfrac{2x}{3}-\dfrac{y}{2}=0}}\right.\\\\ \left\{{{x+y=105}\atop{\dfrac{4x}{6}-\dfrac{3y}{6}=0}~~\Big|\cdot 6} \right.\\\\\\ \left\{{{x+y=105~~|\cdot3}\atop{4x-3y=0}}\right.\\\\ \left\{{{3x+3y=315}\atop{4x-3y=0}}\right.\\ \text{- - - - - - - - - - -} \\ ~~~~~7x~~/~~~=315\\\\ 7x=315\\\\ x=\frac{315}{7}=\boxed{\bf45}\\ x+y=105\\ y=105-x=105-45=\boxed{\bf60} [/tex]