There is a tournament in table tennis (ping-pong) in which 8 players take place.These are the rules of the tournament:
1 ) Each player plays with every other only 1 game.
2 ) If in the i-th round there is a game between A and B, and a game between C and D, and in the i+1-th round there is a game between A and C, then in the i+1-th there must be a game between B and D.
On how many different ways can we make a schedule for all rounds if it's not important which player plays on which table?

Answers

Answer 1
Answer: so 1 player playes 2345678 2 plays 345678 3 plays 45678 4 plays 5678 5 plays 678 7 plays 8 add those up and there is 26 total possible games and 13 rounds.


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People use water to​ cook, clean, and drink every day. An estimate of 17.2% of the water used each day is for cooking . If a family uses 68.8 gallons of water a day for cooking​, how many gallons do they use every​ day?

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Whats the best way to do this operation?---------------------------------Phillip charged $400 worth of goods on his credit card. On his first
bill, he was not charged any interest, and he made a payment of $20. He
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$400 - $20 = $380 ( The original charge subtract the amount he paid. )
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Phillip charged $7.96 interest on his second bill.

A motor bike gets 60 kilometers per gallon of gasoline. How many gallons of gasoline would the bike need to travel 240 kilometers?

Answers

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Simplify the expression 18 + 12xa 2 (9 + 5x )
b 3(6 +3x)
c 6 ( 3 + x)
d (3 + 2x)

Answers

Answer:

c:) 6(3 + 2x)

Step-by-step explanation:

The given expression is 18 + 12x. To simplify this expression, we can first look for any common factors that can be factored out. In this case, we can factor out 6, which gives:

18 + 12x = 6(3 + 2x)

So, the simplified expression 18 + 12x is 6(3 + 2x).

5
2. Expand the brackets and simplify:
a) X(2x + 3)​

Answers

Answer:

2x^2 +3x

Step-by-step explanation:

X(2x + 3)​

Distribute

2x*x + 3x

2x^2 +3x

Is 69,370 divisible by 8,4,6, or 10

Answers

Answer: 69370 is divisible by 10 only

Answer:

10

Step-by-step explanation:

if u divide by 8,4,6 you get decimal answer