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What prime numbers make 175?
The prime factors of 175 are 5 x 5 x 7 (or this may be written as 52x7).
Which year has 367 days?
I say there's (52x7) 364 days unless it's leap year which adds one more day! Please explain why you think there's 365?
How can you use division to determine what day of the week Halloween was on in 2004 if Halloween of 2003 was on a Friday?
In general, if Halloween were on Friday last year then it would be on a Saturday this year. However since there is a February 29th in between, it jumps two days ahead, so it would be on a Sunday.The way you would use division to determine this is by recognizing that 365=(52x7)+1. Since every week is 7 days, you know that if Halloween was on a Friday, then seven days later it will be Friday again, and seven days after that it will be Friday, etc. So, after 364=7x52 days, it will be Friday and the 365th day will be Saturday. This is why, in general, Halloween would be one day later. Since, however, 2004 is a leap year, the year is 366=(7x52)+2 days long, so in this case it would actually be on Sunday. Check out modular arithmetic to see a more general presentation of this issue.
How many human years are equal to two dog years?
not really it's more 15 years of human age of 1 but it does all equal all up to 70 in 10 human years
