a. 1 decade = 10 years = 3652.5 days = 3652.5*24 hrs = 87,660 hours = 87,660*60 min = 5,259,600 min = 5,259,600*60 sec = 315,576,000 sec.
b. 5,638,259,215 sec (div. by 60) = 93,970,986.92 min (div. by 60) = 1,566,183.12 hrs
c. 55 centuries = 55*100 = 5,500 years (X365.25) = 2,008,875 days (x24) = 48,213,000 hours (x60) = 2,892,780,000 min (x60) = 173,566,800,000 sec.
d. 65 years (x365.25) = 23741.25 days (x24) = 569,790 hours (x60) = 34,187,400 minutes.
Note that 1 year = 365.25 days, this will account for leap years.
2007-06-23 16:38:02
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answer #1
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answered by Iain G 3
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Hi - Since this looks like a homework problem, I will give you the steps for (a), you shouldn't have any problem with the rest as long as your calculator is working.
How many seconds in a decade ? Here goes nothing -
60s per minute * 60mins per hour * 24 hours per day * 365.25 days per year * 10 years per decade.
Just break it down and do one step at a time.
Also remember that some of the part answers for this problem can be used to help with the other problems in this set. Now just step away from the chat rooms and get on with it!
cheers
2007-06-23 23:33:28
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answer #2
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answered by Anonymous
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a. A decade is 10 years.
10 years is 3652 days
Each day is 86400 seconds.
So seconds = 3652 * 86400
b. Each hour = 3600 seconds.
So hours = 5.638x10^9/3,6x10^3
c. 55 centuries = 550 decades, so we can multiply the answer to (a) by 550
d. 65 years = 65* 365 days + 16 days (leap years)
Since each day has 1440 minutes, multiply the days by 1440 to get answer in minutes.
2007-06-23 23:25:23
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answer #3
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answered by cattbarf 7
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a. 315,532,800 or 315,619,200 -- there are either two or three leap years in each decade
b. approximately 1566183 hours
c. 173,566,800,000 -- this should be right if each of the sums in (a) are multiplied by five and added together then that sum is multiplied by 55
d. 34,175,520
2007-06-23 23:35:49
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answer #4
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answered by Julia S 2
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a 315576000
b1566183.115278
c 173566800000
d 34187040
that was a challenge but fun to figure out, note on my answers, each year is 365.25 days to account for leap year
2007-06-23 23:43:28
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answer #5
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answered by Ms Always Right 4
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