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Talja [164]
3 years ago
6

On a string of red and blue lights, the red lights blink everyb3 seconds, and the blue lights blink every 5 seconds. How many ti

mes will they blink at the same time in one minute?
Mathematics
1 answer:
yuradex [85]3 years ago
5 0
When will they blink together?
what is the smallest number they both mutiply to
3*5=15
so every 15 seconds
so at 15, 30, 45, 60 seconds
so 4 times if you count the time exactly at 1 minute
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Answer:

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Step-by-step explanation:

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Using FOIL

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