Drivers should not drink and drive. I hope this helps if not hopefully someone helps out
#11
Each roll is 9' long,
length of each roll = 9' * (12"/foot) = 108"
Each ribbon piece = 15", so number of ribbons per roll
=108/15=7 with 3" left over, which is assumed not possible to be joined with other pieces.
Therefore, with 5 rolls, there are 7*5=35 pieces of ribbon, with 5 pieces or 3" left over.
They are all even numbers and divisible by 2
Just convert the kilometers
Answer:
it's virtually impossible to calculate by hand. just look up a standard deviation calculator it'll give you the answer once you plug your numbers in for a population or sample
