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If there are 10 people doing high fives, each person can high five every other person once. The number of unique high fives can be calculated using the combination formula ( \binom{n}{2} ), where ( n ) is the number of people. For 10 people, this is ( \binom{10}{2} = \frac{10 \times 9}{2} = 45 ). Therefore, there would be 45 high fives.
There are 9 fives between 95 and 50. To arrive at this answer we figure the difference between 95 and 50 which is 45. We then divide that total (45) by 5, which equals 9.
Nine fives is 45. As a mixed number that is 450/k where k is ANY non-zero number.
there is 91 fives in 455