One sign blinks every
9 seconds. The other sign blinks every 15 seconds. In how many
seconds will they blink together again
3 answers
What is the least common multiple of 15 and 9?
45 is the common multiple
The manager turns on the restaurant's two neon signs at the same time. Both signs blink as they are turned on. One sign blinks every 9 seconds. The other sign blinks every 15 seconds. In how many seconds will they blink together again?
5 answers