Answer:
19/41
Step-by-step explanation:
this fraction cannot be simplified since 19 is a prime number.
If you don’t your answer will not be correct also when you use them it helps you find the correct answer
Ok, simple.
Carl has 4 less than triple the amount Toni has.
Toni has x amount of CDs.
Carl has 3x - 4 amount of CDs.
Hope this helps!
For a non-resident:

For a resident:

We want to know the number of days
such that the two costs are equal ie 
To do this set the two costs equal to each other:


And solve for d:




The costs will be equal when a resident and a non-resident each use the beach for 12 days.