Question

Impartiti un segment de 9 cm in parti direct proportionale cu numerele 1,2,3. VA ROG AM NEVOIE MAINE PENTRU O EVALUARE.

Answer 1

O sa notez partile cu a,b si c

$(a,b,c)\ d.p.\ (1,2,3)\\\\\frac{a}{1}=\frac{b}{2}=\frac{c}{3}=x(variabila\ oarecare)\\\\ a=x\\b=2x\\c=3x\\a+b+c=9\\x+2x+3x=96x=9\\x=\frac{9}{6}=\frac{3}{2}=1,5\\a=x=1,5\\b=2x=2*1,5=3\\c=3x=3*1,5=4,5$