Question

A las 9 de la mañana,la temperatura en Valcorto era de -8 grados . A las 12 horas era dos grados mayor ,a las 15 horas tres grados mas que a las 12 ,y a las 21 horas nueve grados menos que a las 15 ¿que temperatura habia cada hora citada?

Answer 1

`T_(9hr)=-8 C`

`T_(12hr)=-6 C`

`T_(15hr)=-3 C`

`T_(21hr)=-12 C`

Explanation:

The initial temperature at 9 am:

`T_(9hr)=-8 C`

At 12 hr is 2 degrees higher:

`T_(12hr)=T_(9hr)+2 C=-6 C`

At 15 hr is 3 degrees higher than 12hr:

`T_(15hr)=T_(12hr)+3 C=-3 C`

Finally, at 21 hr, is 9 degrees lower than 15 hr:

`T_(21hr)=T_(15hr)-9 C=-12 C`