Sound energy passing through a hole

[ashi611]

Homework Statement

"A continuous sound wave with a sound intensity level of 80dB passes through a hole in a wall which has a cross-sectional area of 3m^2. How much energy passes through this hole in 10 minutes, in joules?"

If anyone can show me how this problem is solved it's be much appreciated. Thanks

Homework Equations

dB = 10log10 (I/Io)

The Attempt at a Solution

 

[Nathanael]

Suppose instead of units of dB you had Joules per square meter per second (a.k.a. Watts per square meter a.k.a. Intensity)

Then how would you solve the problem?