excercise joy of elixir

dayHours = 24
daySecs = dayHours * 60 * 60
IO.puts(daySecs)

hoursIn30Days = daySecs / 60 / 60 * 30

IO.puts(hoursIn30Days)

avg = (4 + 8 + 15 + 16 + 23 + 42) / 6
IO.puts(avg)

fahrenheit_to_celsius = &((&1 - 32) / 1.8)

days_to_secs = &(&1 * 24 * 60 * 60)

calc_avg_age = fn (p1, p2) -> (p1.age + p2.age) / 2 end