[tex]\tt{\huge{\blue{Explanation:}}}[/tex]
The speed of sound in air is given by
[tex]\boxed{v = 331 + 0.6T}[/tex]
where:
v = speed of sound in air at a given temperature
T = temperature of air (in °C)
[tex]\tt{\huge{\red{Solution:}}}[/tex]
Solving for the speed of sound
v = 331 + 0.6T
v = 331 + 0.6(99)
[tex]\boxed{v = \text{390.4 m/s}}[/tex]
Therefore, the speed of sound in air at 99°C is 390.4 m/s.
[tex]\\[/tex]
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