So this can be solve by establish two equation: let x be age of montell y be tha age of her mom for the first equation (<span>Montell is 30 years)</span>: x = y - 30 second equation ( in 5 years )
x + 5 = ( y + 5 ) ( 1/3) solving the equation simultaneously
The answer is 30 days until it appears on a Friday again. In order to see the full moon again, we have to go through the entire cycle. So, it will be about 30 days before we would have seen another one.
