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CassiusDelaney

  • 2 years ago

8. A buzzer beeps for 4 seconds then stops for 2 seconds. A light turns on for 4 seconds then off for 6 seconds. The buzzer and light were started at the same time and repeat their cycles endlessly. How many times per minute do they start their cycles together?

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  1. hcmathkim
    • 2 years ago
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    2 times

  2. hcmathkim
    • 2 years ago
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    once at the beginning of each minute, and once at the 30 second mark

  3. CassiusDelaney
    • 2 years ago
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    are you sure sounds wrong....

  4. hcmathkim
    • 2 years ago
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    first one has the cycle of 6 seconds, second one 10.

  5. hcmathkim
    • 2 years ago
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    obviously they start together. second one increases by 10 and 6 becomes a multiple of 10 at 30, 60, 90, 120, ...

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