After a customer has paid his or her first invoice, the average days to pay (ADTP) is calculated based on the number of invoices a customer has, the time taken to pay the first invoice, and the time taken to pay the most recent invoice. The formula for calculating the average days to pay is: ADTP = (Current ADTP) x (Number of Invoices) + (Number of Days Taken to Pay Most Recent Invoice) / (Number of Invoices + 1) The time it took to pay the first invoice would provide the initial value for the Current ADTP.
There are two paths to becoming an astronaut: 1  Become an US military pilot, and the best and safest pilot you can be. 2  Get a PhD in a subject that will be necessary in which to perform research in space, or to assist in building a new space station, or a space colony.
How to become a pilot. Do you have what it takes to become an airline pilot? Entry requirements for our programs vary according to training location and local regulatory requirements however generally you should meet the following minimum entry criteria: Aged over 18 years old to commence training. Completed Secondary School education achieving national qualifications in English Language, Mathematics and Science subjects.