Answer:
67 degree
Step-by-step explanation:
The velocity of sound in air is given by the equation
\(v=20\sqrt{273+t}\)
where v is the velocity in meters per second and t is the temperature in degrees Celsius.
Given the velocity of sound in air is 369 that is our 'v'
We need to find out 't'
\(369=20\sqrt{273+t}\)
Divide by 20 on both sides
\(18.45=\sqrt{273+t}\)
Take square on both sides
\(18.45^2 = 273+t\)
340.4025= 273+t
Subtract 273 on both sides
67.4025 = t
Now round to nearest degree
t= 67 degrees