Question

transforme:
a) 7,3cm em m=
b) 850cm em m=
c) 250g em kg=
d) 3h 7 min em s=
e) 72km/h em km/s=​

Answer 1

Explicação:

a ) utilizando regra de tres basica

1m ----100cm

x ----7.3 cm

1×7.3 = 100x

7,3=100x

x=7,3:100

x= 0,073m

b) 1m -----100cm

x ------850 cm

1×850=100x

850=100x

x=850:100

x=8,5m

c )1kg ------1000g

x -------250g

1×250=1000x

250=1000x

x=250:1000

x =0,25kg

d) 1h ------3600s

3h------x

1x=3×3600

x= 10800s + 420s (dos 7 min que sobraram)

x= 11220s

e) 3600s-----72km

x------72km

3600×72=72x

259,200 =72x

x=259,200:72

x=3,6km/s