Question

dau 60 puncte ...va rog ajutor am nevoie sa ma ajutati la :1,2,3,4 dau si coroana celui mai bun raspuns

Answer 1

1.
AB=2cm,BC=3cm
AB=4cm,BC=1cm

2.
386km=3860hm
4t=4000kg
450km=4500hm
2t=2000kg
1900dl=190l
360s=6min
2100dl=210l
720s=12min
14zile=2saptamani=336ore
7zile=1saptamana=168ore
400ani=40decenii=4secole
200ani=20decenii=2secole

3.
930m+17dam=930m+170m=1100m
800cm+15dam=8m+150m=158m
635hl-35dal=6350dal-35dal=6315dal
728hl-280dal=7280dal-280dal=7000dal
8kg-7hg=8000g-700g=7300g
6kg-5hg=6000g-500hg=5500g
12min+120s=12min+2min=14min
480s+5min=8min+5min=13min
4ani,consecutivi=48luni=1460zile
2ani,consecutivi=24luni=630zle

4.
4hl=400l,vin:1=400,sticle,de,vin
6dal=60l,ulei:1/2=120,sticle,de,ulei
In,total,s-au,folosit,520,sticle.

400l:1=400,sticle,de,vin
7dal=70l,ulei:1/4=280,sticle,de,ulei
In,total,s-au,folosit,680,sticle.