The total number of handshakes was 234.
- The first man shook hands with 12 other men.
- The second man shakes hands with 11 other men, as he had already shaken hands with the first man.
- Like-wise, the last man does not need to shake hands again as every man has already shaken hands with him in their respective turns.
- The number of handshakes among men is 0 + 1 + 2 + … + 12.
- The sum of "n" natural numbers = (n)(n+1)/2
- The number of handshakes among men is 12(13)/2.
- The number of handshakes among men is 78.
- Each man shakes hands with every woman except his spouse.
- Each man shakes hands with 12 other women.
- The number of handshakes between men and women is 13*12.
- The number of handshakes between men and women is 156.
- The total number of handshakes is 78 + 156.
- The total number of handshakes is 234.
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Answer:
For example, if N represents a number, then N + 9 is the number that is 9 greater than N.
So if N represents the number 3, then N + 9 is the number 12.
If N represents the number 7, then N + 9 is the number 16.
Here are 2 important terms for you to understand: Algebraic Expression and Algebraic Equation.
In the previous example, N + 9 is called an algebraic expression because N can represent any number.
If we write it this way: N + 9 = 12, we are writing an algebraic equation.
In an equation, N represents a specific number, not any number.
N + 9 = 12 means N is a number which, when added to 9, must give the answer 12.
So N can only be the number 3 because only 3 + 9 is equal to 12.
Step-by-step explanation:
Answer:
they are the same . If u add (-5) + (-30) that will be equal to (-35)
<span>Let the distance frm the base of the cliff to boat=x
</span><span>We
Tan16=oposit/base=x/120
x=?</span>
