[DOC] [TLE] Friday the 13th Paradox [PAR] There only 7 different cases to examine: when the year (January 1st) begins on a 
... Prove that Friday the 13th can occur in two consecutive months only in ... On 
what day of the week must January 1 occur for February and March to have... [DOC] [TLE] 13 Facts About Friday the 13th - Timeanddate.com [PAR] Friday the 13th: 13 Facts About the Unluckiest Day in the Calendar ... The first 
documented mention of the day can be found in a biography of Italian composer 
Gioachino Rossini, who died on a Friday 13th. ... For a month to have a Friday the 
13th, the month must begin on a Sunday. ... Learn more about the days of the 
week. [DOC] [TLE] Friday the 13th - Wikipedia [PAR] Friday the 13th is considered an unlucky day in Western superstition. It occurs 
when the 13th day of the month in the Gregorian calendar falls on a .... In years 
which begin on the same day of the week and are of the same type (that is, ... Any 
month that starts on a Sunday contains a Friday the 13th, and there is at least one
... [DOC] [TLE] Months That Begin on a Sunday will Always have a Friday the 13th ... [PAR] Months that begin on a Sunday will always have a Friday the 13th. We often look 
at calendars to know exactly which date a particular day falls on or vice versa. [DOC] [TLE] Show Answer - Brain Teasers [PAR] When's the next year when there won't be a Friday the 13th? Answer: Never. The 
13th of each month will fall on different days, according to a complex ... However, 
each day of the week comes up as the 13th within the first 9 or 10 months every 
year ... there is ALWAYS a year that has at least 1 month that will start on Sunday
... [DOC] [TLE] Prove that every year has at least one Friday the 13th - Mathematics ... [PAR] Aug 23, 2011 ... Why does every year have at least one of this bad day? ... A month has a Friday 
13th if and only if it begins on a Sunday. .... I guess this means that every year 
has all possible combinations of day of the week/day of the month? .... Thus there 
is always Friday the 13th every year, not just Friday the 13th but all... [DOC] [TLE] Friday the 13th - DataGenetics [PAR] The 13th is more likely to fall on a Friday than any other day of the week! ... Is 
there really an affinity to Friday for the 13th day of the month? ... (It's also at this 
point in history that the beginning of year was defined as being January .... Each 
Gregorian 400 year cycle contains 146,097 days (You can calculate this from 365 
x... [DOC] [TLE] 2015 has three Friday the 13ths. What are the odds? | Human World ... [PAR] Nov 13, 2015 ... Also, next year's lone Friday the 13th on May 13, 2016, will happen ... some 
people fear this day and about 2015's three Friday the 13ths. ... the months of 
February, March and November will start on a Sunday. ... In any year, the days of 
the week always fall on the same dates in both March and November. [DOC] [TLE] Friday the 13th frequency - All this [PAR] Jul 14, 2012 ... Friday the 13th occurs 3 times this year, each 13 weeks apart from the other. ... 
because a 28-year period typically contains seven leap years and therefore ... the 
same as this year's calendar, and so will be the calendar for 2040. .... March and 
November always start on the same day of the week, because [DOC] [TLE] Perpetual Calendar - Math Forum - Ask Dr. Math [PAR] A monthly calendar tells you on what day of the week each date falls. ... since the 
first of the month can occur on any of the seven days of the week. ... will cover the 
years to 2084, and beginning another cycle will take us to 2099. ... have a Friday 
the 13th, or in what years your birthday

Question: Months that contain a Friday the 13th will always begin on this day of the week
Answer: Sunday