Respuesta:
1hora=4C°
30 min=2C°
15 min=1C°
a)
20c°/4c°=5horas
b)
12C°/4c°=3horas + 30min=2c° =3horas y 30
c)
15min=1C°
i)
1c°-(4c°.3)=1c°-12c°=-11c°
ii)
1c°-(4c°.7)=1c°-28c°=-27c°
d)
10c°- xhoras=-2c°
10c°+2c°=xhoras
12horas=x
Explicación paso a paso:
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Respuesta:
1hora=4C°
30 min=2C°
15 min=1C°
a)
20c°/4c°=5horas
b)
12C°/4c°=3horas + 30min=2c° =3horas y 30
c)
15min=1C°
i)
1c°-(4c°.3)=1c°-12c°=-11c°
ii)
1c°-(4c°.7)=1c°-28c°=-27c°
d)
10c°- xhoras=-2c°
10c°+2c°=xhoras
12horas=x
Explicación paso a paso: