Algebra 2

Can someone help me? I'm really confused.

The loudness L of a sound in decibels is given by L= 10log(base10)R, where R is the sound's relative intensity. If the intensity of a certain sound is tripled, by how many decibels does the sound increase?

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  1. evaluate
    L = 10log (3R)
    = 10log3 + 10logR
    = 4.77 + l0log R

    so ....

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  2. oh, thanks

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  3. wait, where'd the 4.77 come from?

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  4. can u do the rest of the work??

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  5. My Name is Mac

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  6. Yes

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