1) miligram-masa
hectar-arie
decimetru cub-volum
deceniu-timp
2) 10 lei, 50 bani
a) lungime 34000mm=34m
arie: 200ari=20000m*m
masa: 1.2g=0.0012Kg
[tex]volum: 0.5cm^{3}=0.0000005 m^{3}[/tex]
3) a) [tex]V=h*l*L=4.5*8*5=180m^{3}[/tex]
b) [tex]A_{gresie}=l*l=1dm*1dm=0.01m^{2}[/tex]
[tex]A_{bazin}=l*L=5*8=40m^{2}[/tex]
[tex]Nr placi=\frac{A_{bazin}}{A_{gresie}}=\frac{40}{0.01}=4000[/tex]
c) [tex]timp=10:05-0+24:00-23:20=10:05+00:40=10:45[/tex] 10 ore si 35 de minute
