For example: 528491=5+2+8+4+9+1=29=2+9=11=1+1=2 Is 528491 a prime number? Chosen Answer: David is right on, but the process is called “Casting Out Nines”. It leads to the remainder when the number is divided by 9 and works because 9 = 10-1 and our system is base 10. Similarly, “Casting Out Elevens” can be given. It is [...]
Posts Tagged ‘them’
What is the process called when you take numbers and add them together continually to reduce them?
Posted by Eleven2 on March 2nd, 2013
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How much sleep is ideal when one reaches midlife?
Posted by Eleven2 on December 23rd, 2012
We’ve all heard the research that teens require ten hours and that senior citizens require seven hours or less. But what about us folks in the middle? I’m 49 and have been trying different routines. I’ve tried getting anything from four hours to eleven hours… nothing really seems ideal. Anyone have something that’s working for [...]
Two six-sided dice are rolled (Some possibilities are (Red=1,Green=5) or (Red=2,Green=2) etc. (a) How many to?
Posted by Eleven2 on November 11th, 2012
Two six-sided dice are rolled (one red one and one green one). Some possibilities are (Red=1,Green=5) or (Red=2,Green=2) etc. (a) How many total possibilities are there? 36,11,and 12 are not right Chosen Answer: You have two dice, the POSSIBILITIES are the numbers that can be thrown with two dice, and they are all the numerals [...]
How many eleven-letter words can you find with only 2 vowels in them?
Posted by Eleven2 on November 22nd, 2011
They must be singular form, non-hyphenated English words; common, not proper names. I have only one in mind. How many can you find? Thanks Brit, that’s a good try. I’m looking for a singular form, though. To be honest, I just happened upon this word yesterday, and thought, wow, it has only two vowels. Yea, [...]
How can I make my babysitting buisness more sucessful?
I am eleven and have just started a babysitting buisness I put up flyers they get taken down, I ask my mom to recomend me she won’t, I printed out buisness cards but I don’t know what to say when I pass them out. My buisness is a drag and I need the money please [...]