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 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?
 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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hcmathkim
 2 years ago
Best ResponseYou've already chosen the best response.0once at the beginning of each minute, and once at the 30 second mark

CassiusDelaney
 2 years ago
Best ResponseYou've already chosen the best response.0are you sure sounds wrong....

hcmathkim
 2 years ago
Best ResponseYou've already chosen the best response.0first one has the cycle of 6 seconds, second one 10.

hcmathkim
 2 years ago
Best ResponseYou've already chosen the best response.0obviously they start together. second one increases by 10 and 6 becomes a multiple of 10 at 30, 60, 90, 120, ...
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