Mathematics, 22.06.2020 18:57 nails4life324

A fire alarm rings 20 times. It pauses for 1 second between rings. Each ring is 3 seconds long. How long does the ringing last? a. 60 seconds b. 79 seconds c. 68 seconds d. 80 seconds

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A fire alarm rings 20 times. It pauses for 1 second between rings. Each ring is 3 seconds long. How...

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