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.
To divide a whole number by a unit fraction, you can always multiply the whole number by the unit fraction's denominator to get the answer! Example: 5 divided by 1/7 is 5*7=35. This answer of 35 makes sense: there are seven 1/7's in a 1, so there are thirty-five 1/7's in a 5.
This is the formula you are looking for Logb x = Loga x/Loga b
Since there are 52 weeks in a year, we have 52 weeks=1 year and
57.3*1000 (k means 1,000) = 573,000/1 year. Multiplying it by 1 year/52 weeks (to cancel the years), we get 573000/52=around $<span>11019.23 as our answer</span>
