# Party

At party overyone clink with everyone. Together, they clink 171 times. How many people were at the party?

**Result****Leave us a comment of example and its solution (i.e. if it is still somewhat unclear...):**

**Showing 0 comments:**

**Be the first to comment!**

#### To solve this example are needed these knowledge from mathematics:

## Next similar examples:

- Expression with powers

If x-1/x=5, find the value of x^{4}+1/x^{4} - Chords

How many 4-tones chords (chord = at the same time sounding different tones) is possible to play within 7 tones? - Combinations

From how many elements we can create 990 combinations 2nd class without repeating? - Combinations

How many elements can form six times more combinations fourth class than combination of the second class? - The confectionery

The confectionery sold 5 kinds of ice cream. In how many ways can I buy 3 kinds if order of ice creams does not matter? - Fish tank

A fish tank at a pet store has 8 zebra fish. In how many different ways can George choose 2 zebra fish to buy? - Trinity

How many different triads can be selected from the group 38 students? - Examination

The class is 21 students. How many ways can choose two to examination? - Confectionery

The village markets have 5 kinds of sweets, one weighs 31 grams. How many different ways a customer can buy 1.519 kg sweets. - Blocks

There are 9 interactive basic building blocks of an organization. How many two-blocks combinations are there? - Teams

How many ways can divide 16 players into two teams of 8 member? - Quadratic equation

Find the roots of the quadratic equation: 3x^{2}-4x + (-4) = 0. - Calculation of CN

Calculate: ? - Discriminant

Determine the discriminant of the equation: ? - Theorem prove

We want to prove the sentense: If the natural number n is divisible by six, then n is divisible by three. From what assumption we started? - Roots

Determine the quadratic equation absolute coefficient q, that the equation has a real double root and the root x calculate: ? - Equation

Equation ? has one root x_{1}= 8. Determine the coefficient b and the second root x_{2}.