Question

Aflati numerele x si y stiind ca xsupra 2 =y supra 3 ,iar suma numerelor este 90.

Answer 1

x=2k
Y=3k
2k+3k=90
5k=90
k=18
si inlocuiesti :3 ori 18=54(astai y)
                      2 ori 18=36(astai x)

Answer 2

x/2=y/3 =>
 3x=2y; x=2y/3
x+y=90 =>
inlocuim x-ul
2y/3+y=90
5y/3=90 => 5y=270;
y=270/5=54
si x= 2y/3=54*2/3=36
deci X= 36 si Y=54