Sunday, February 19, 2012

Time: Days in a Month; Time: Weeks to Days






In our last post, we learned about different conversions of seconds, minutes, and hours.  Today, we are going to learn about two things: days in each month and converting weeks to days and vice versa. 


To memorize how many days are in each month, we will learn a saying to help us remember. The saying goes like this: 


30 days has September, April, June, and November.  All the rest have 31, except February, which has 28, or 29 if it is a leap year.


It is that easy!


So, just to confirm, we will list the number of days in each month:


January:  31
February: 28 or 29
March: 31
April: 30
May: 31
June: 30
July: 31
August: 31
September: 30
October: 31
November: 30
December: 31


Now, we are going to learn how to convert from weeks to days.  First, we must know that there are 7 days in a week.  To convert weeks back into days, we simply multiply the number of weeks given by 7, since each week has 7 days.  For example, to convert 26 weeks into days, we simply multiply 26 x 7 = 182.  So, 26 weeks = 182 days.  


Let's try a few more examples:


Convert the following number of weeks into days.


1.) 5 weeks = ? days
2.) 17 weeks = ? days
3.) 12 weeks = ? days


1.) 35 days; 5 x 7 = 35
2.) 119 days; 17 x 7 = 119
3.) 84 days; 12 x 7 = 84


Now, we are going to convert from days into weeks.  Since we multiply by 7 to convert from weeks to days, we do the opposite operation to convert days into weeks.  We divide the number of days by 7 to find the number of weeks.  The simplest example is: 7 days = ? weeks?  We simply divide 7 / 7 = 1.  So, 7 days = 1 week.  


Let's try a few more examples:


1.) 49 days = ? weeks
2.) 87 days = ? weeks
3.) 14 days = ? weeks


1.) 49 days = 7 weeks because 49 / 7 = 7
2.) 87 days = 12.43 weeks rounded to the nearest hundredth because 87 / 7 = 12.4285714
3.) 14 days = 2 weeks because 14 / 7 = 2


The following are useful links to help you with both topics we have discussed today:


Note: the first two links should only be used to confirm answers, as they are simply conversion calculators.


1.) Converting weeks to days : calculator
2.) Converting days to weeks: Calculator
3.) Website for learning how to remember the days in each month 


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