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kifflom [539]
4 years ago
5

In a local basketball league championship total 198 games were played, where each team played exactly three games with all the o

ther teams. How many teams participated in this championship?
Mathematics
1 answer:
kifflom [539]4 years ago
6 0

Answer:

  12

Step-by-step explanation:

When n teams play each other once, the total number of games is n(n-1)/2. Since each team played every other one 3 times, the relationship between number of teams (n) and number of games is ...

  3(n(n-1)/2) = 198

  n(n-1) = 132 = 12·11 . . . . . . multiply by 2/3 and factor

  n = 12 . . . . . . n = -11 is also an extraneous solution to this quadratic equation

12 teams participated in this championship.

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A group of people were asked if they had run a red light in the last year. 363 responded "yes", and 138
e-lub [12.9K]

Answer:

363/501

Step-by-step explanation:

363+138=501.........

8 0
3 years ago
This is a 5-digit number.
borishaifa [10]

Answer:

The number is 38,478

Step-by-step explanation:

* Lets explain how to find the number

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* Ones ⇒ the last digit

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* Thousands

* Ten thousand

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∵ The last year is 2018

∴ The last digit is 8

∴ The ones digit is 8

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∵ 8 - 5 = 3

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∴ The hundreds digit is 4

* <em>The number is 38,478</em>

8 0
4 years ago
0.75 on number line?
Anarel [89]
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lets say this is your number line
-------------------------         
that number line contains 24 dashes,, so if you take that number (which is the length of the number line) and divide it by 4 you will find where 3/4 is.
24 ÷ 4 = 6
this means that at every 6,, you add 1/4. on the number line it would look like the following:
------I------I------I------
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this technique shows you where 3/4/0.75 is on your number line.
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:)
6 0
4 years ago
Use the formula V=pier ^2
klio [65]

Answer:

Step-by-step explanation:

volume of cylinder = πr²h

πr²h = 127.23 cubic inches

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=127.23 * 100 /3*3*3.14*100

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The difference is 950 - (-346). The double negative turns into a positive, so it's basically 950 + 346 = 1296 degrees.

3 0
3 years ago
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