Question

Pelo amor de Deus, me ajudem

Answer 1

Respostas:

1a) $2km=2000m$

b) $1,5m = 1500mm$

c)  $5,8km = 5800m = 580000cm$

d) $0,4m = 400mm$

e) $27mm = 2,7cm$

f) $126mm = 0,126m$

g) $12m = 0,012km$

2a) $1h=60min=60*60=3600s$

b) $24h*3600s=12h*7200s=6*14400s=3*28800s=86400s$

c) $7d*24h=168h$

d) $3h*60min+45min=180min+45min=225min$

e) $5h*60min+5min=300min+5min=305min$

f) $35min*60s=1800s+300s=2100s$

g) $(2h*60min+53min)*60s=(120min+53min)*s=173min*60=6000s+4200s+180s=10380s$