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Amiraneli [1.4K]
2 years ago
13

15. Sensei's Judo Club has a competition for

Mathematics
1 answer:
marta [7]2 years ago
3 0

Answer:

6 grapples

Step-by-step explanation:

x = number of wins

y = number of ties

y = 15 - x

48 = 5x + 2y

48 = 5x + 2(15 - x)

48 = 5x + 30 - 2x

48 = 3x + 30

18 = 3x

x = 6

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A number cube with the numbers 1 through 6 is rolled. What is the probability of the number cube showing a 4 or a number less th
Sonja [21]

Answer:

Step-by-step explanation:

The probability is

P

(

A

)

=

1

3

Explanation:

To calculate the probability you have to count the number of all possible results

|

Ω

|

and the number of results that fulfill the given condition

|

A

|

.

In this case

Ω

=

{

1

,

2

,

3

,

4

,

5

,

6

}

Thereare 6 possible result of a dice toss. So

|

Ω

|

=

6

The given condition is "the result is divisible by

3

", so

A

=

{

3

,

6

}

- those are the only numbers divisible by

3

, so

|

A

|

=

2

.

Finally to calculate the probability we have to divide

|

A

|

by

|

Ω

|

.

P

(

A

)

=

|

A

|

|

Ω

|

=

2

6

=

1

3

Note The probability is never larger than

1

, so if you get such result then there must be a mistake in calculations.

4 0
3 years ago
Read 2 more answers
Help please i need it quickly
Minchanka [31]
The answer is 2 ......
8 0
3 years ago
Read 2 more answers
Ok help me please guys ..what is 61=3b+7 ?
Neporo4naja [7]
61 = 3b + 7

3b + 7 = 61

3b = 61 - 7

3b = 54

b = 54/3

b = 18.
7 0
2 years ago
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What do you call the absolute values of 6 and -6
coldgirl [10]

I believe they are called opposites.

3 0
3 years ago
|3x-4| +2=1<br> Please help!
fomenos

1.6 !!!!!!!!!! x=1.6 !!!!!

3 0
3 years ago
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