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alukav5142 [94]
3 years ago
14

There are 20 players in a table tennis competition. each player must play exactly one match against every other player. how many

matches are there in the competition?
Mathematics
1 answer:
Flauer [41]3 years ago
7 0
There are 10 matches in the competition if you count every other player you'll end up with 10

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Name the property the equation illustrates.<br><br> 7 + (4 + 4) = (7 + 4) + 4
galben [10]

Answer: Associative Property of Addition

Step-by-step explanation: The statement 7 + (4 + 4) = (7 + 4) + 4 represents the associative property of addition. Notice that the addends or the numbers we are adding are the same on both sides of the equals sign.

But on the left side, 4 and 4 are grouped together and on the right side, 7 and 4 are grouped together.

The <em>associative property of addition</em> says that when we are adding more than two numbers, the grouping of the addends does not affect the sum.

Here, the order operations tells us to begin inside the parentheses. So we have 4 + 4 which is 8 and 7 + 8 is 15.

On the right side, notice that 7 + 4 is 11 and 11 + 4 is also 15.

In general terms, we can write the associative property of addition as

(a + b) + c = a + (b + c) where <em>a</em>, <em>b</em>, and <em>c</em> are variables that can represent any number.

3 0
3 years ago
Convert 356,000,000 and 0.0000234 to scientific notation
Masteriza [31]

Answer:

Step-by-step explanation:

Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the 10 . If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.

5 0
3 years ago
Read 2 more answers
write an equivalent expression for 2x+2 using distributive property and write an equivalent expression for 2(2x+5)​
devlian [24]
(1+1)x+1 and 4x+10


Explanation

I distributed the 2 to form a new equation and I put together the distributed equation in the second one to form a new one,
3 0
2 years ago
F ( x ) = 9x^3 + 2x^2 - 5x+4 and g( x ) = 5x^3 - 7x +4. WHAT IS F( x ) - G( x )?
Juliette [100K]
That is confusing do u have like pic of the question
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There are 14 people on the city bus. At first stop, 4 people get off and 2 get on. At the second stop, 6 people get off. If ther
Dovator [93]

Answer:

6

Step-by-step explanation:

14-4=10+2=12-6=6+6=12

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2 years ago
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