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When you whisper, you produce a 10-dB sound.
a. When you speak quietly, your voice sounds twice as loud as a whisper. How many decibels is this?
b. When you speak normally, your voice sounds 4 times as loud as a whisper. How many decibels is this?
c. When you yell, your voice sounds 8 times as loud as a whisper. How many decibels is this?
All you would do is for a, 10 times 2 is 20 so it would be 20-dB For b, 10 times 4 is 40 so it would be 40-dB For c, 10 times 8 is 80 so it would be 80-dB
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