Asked by amber

The manager turns the restaurants two neon signs on at the same time both signs blink as theyaare turned on. One sign blinks every 9 seconds and one sign blinks every firfteen seconds. How many seconds will they both blink together again?
Answered by Ms. Sue
What is the least common multiple of 9 and 15?

Answered by Ellie
54 seconds
Answered by lVORY SMITH
SO, WHAT IS THE ANSWER AND I DO I GET THE ANSWER?
Answered by Ghb
15 seconds
Answered by liana
the common multiple of 9 and 15 is 90
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