Answer:
350 m/s
Explanation:
v = 331 m/s + (0.61 m/s) (T / °C)
Simply substitute 30.°C for T:
v = 331 m/s + (0.61 m/s) (30.°C / °C)
v = 331 m/s + (0.61 m/s) (30.)
v = 331 m/s + 18.3 m/s
v = 349.3 m/s
The temperature was given in 2 significant figures, so we need to round our answer to 2 significant figures.
v = 350 m/s
