Two lighthouses can be seen from the top of the hill the first flashes once every six seconds and the other flashes once every 1

Question

4 years ago

13

5 seconds if they flash how long is it until they flash again at the same time

1 answer:

mote1985 [20] · Answer 1 · 2022-02-02T05:34:04+03:00

3 0

Answer:

30 seconds

Step-by-step explanation:

Find the least common multiple of 6 and 15.

First, write the prime factorizations.

6 = 2 × 3

15 = 3 × 5

The LCM is the product of each distinct factor.

LCM = 2 × 3 × 5

LCM = 30

They flash together at the same time every 30 seconds.