The Associative Laws say that it doesn't matter how we group the numbers (i.e. which we calculate first) ... ... when we add : (a + b) + c = a + (b + c). ... or when we multiply : (a Ã b) Ã c = a Ã (b Ã c).
To complete the PCT in two months (or less) you will need to average approximately 43.6 mi / 70.2 km per day (this was my longest day on trail).
In logistic regression analysis, increasing times to PCI were associated with increasingly higher adjusted mortality rates as follows: 30 minutes, 3.0%; 60 minutes, 3.5%; 90 minutes, 4.3%; 120 minutes, 5.6%; 150 minutes, 7.0%. The researchers conclude that any delay in PCI portends higher mortality.