Răspuns :
8:20-7:30=90 min
1 ora=60 min
90-60=30
1:30 pe a-b
36+(36:2)=36+18=54km
1 ora=60 min
90-60=30
1:30 pe a-b
36+(36:2)=36+18=54km
t = 3000s
v=10 m÷s
d= v ×t=3000s × 10 m÷s=30000m sau 30 km
asa parca
v=10 m÷s
d= v ×t=3000s × 10 m÷s=30000m sau 30 km
asa parca