Question

1)Segmentele AB=0,6 dm;AC=120mm;MN=0,05dam;MP=x cm. sunt proporționale.Atunci ,,x" este=...?

Answer 1

AB ....6 cm
AC....12 cm
MN.....50 cm
MP....?cm

Segmentele sunt direct proportionale in asa mod :
$\frac{AC}{AB} = \frac{12}{6} =2$

$\frac{MN}{MP} = \frac{50}{25} =2$

Rezulta ca $\frac{AC}{AB} = \frac{MN}{MP} =2$
⇒K=2
Deci x = 25 sau MP = 25 cm