Respuesta :
The average change in temperature from 9 a.m to 9 p.m is - 0.6 °[tex]C[/tex] per hour (negative indicates temperature decreases), if the temperature at 9 a.m was 13.6 °[tex]C[/tex] and the temperature at 9 p.m was 6.4 °[tex]C[/tex].
Step-by-step explanation:
The given is,
The temperature at 9 a.m was 13.6 °[tex]C[/tex]
The temperature at 9 p.m was 6.4 °[tex]C[/tex]
The temperature at 3 a.m was 23.5 °[tex]C[/tex]
Step:1
Hours difference between 9 a.m to 9 p.m is,
= 12 hours (∵ consider a clock for this calculation)
Step:2
Temperature difference between 9 a.m to 9 p.m is,
= 6.4 - 13.6
= - 7.2 °[tex]C[/tex]
Step:3
Average change in temperature between 9 a.m to 9 p.m,
[tex]Avg = \frac{Temperature difference}{Time period}[/tex]
[tex]= \frac{- 7.2}{12}[/tex]
= - 0.6 °[tex]C[/tex] ( ∵ Negative indicates temperature reduction)
Result:
The average change in temperature from 9 a.m to 9 p.m is - 0.6 °[tex]C[/tex] per hour ( Negative indicates temperature reduction).
