A noisy machine in a factory produces sound by a level

Reference no: EM13666076

A noisy machine in a factory produces sound by a level of 80 dB. How many identical machines could you add to the factory without exceeding the 90 dB limit?

Reference no: EM13666076

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A noisy machine in a factory produces sound by a level : A noisy machine in a factory produces sound by a level of 80 dB. How many identical machines could you add to the factory without exceeding the 90 dB limit?

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