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professor190 [17]
3 years ago
11

There are 8 players in a chess tournament. after the tournament each player has to shake hands with e

Mathematics
1 answer:
kati45 [8]3 years ago
8 0
<span>There are 8 players in a chess tournament. After the tournament each player has to shake hands with every other player. Which number sentence below is the best way to show the number of handshakes? 
Answer :
</span><span>7+6+5+4+3+2+1= 28</span>
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Answer:

1. YES  2. NO

Step-by-step explanation:

1. Since x=0.121212... and the question is asking for 100x, we need to multiply each side by 100. 0.121212... multiplied by 100 is 12.1212... So YES, 100x is still a repeating decimal.

2. 12.121212... minus 0.121212... would just be 12. This is because if we know that all the numbers behind the decimal point is 0.121212 and so on, 12.121212... minus 0.121212... the numbers behind the decimal would cancel out. So we are left with 12. So NO, the answer for 99x is NOT a repeating decimal.

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3 years ago
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Answer:

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3 years ago
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