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solmaris [256]
2 years ago
12

There are 18 girls and 12 boys in your class. What is the probability that a new kid entering your class will be a boy ?

Mathematics
1 answer:
xenn [34]2 years ago
6 0
C.
12/30=0.4
You should really learn how to do probabilities. They don't go away after like the sixth grade.
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Simplify<br> l3r-15l if r&lt;5<br> SOLVE NOW PLEASE
katrin [286]

Answer:

-3r + 15 ---> answer

Step-by-step explanation:

r < 5

You are going to multiply both sides with 3. The reason being is that 3 is a positive number and the equality sign will not change if you use +3.

3r < 15

Now, subtract 15 from both sides, you will get this:

3r < 15

-15   -15

-------------

3r — 15 < 0

Lastly, using the Modulus function, we are going to add a negative sign to the content of our previous step because it's already negative.

So, -3r + 15 is the final solution if r < 5 in the given equation of l3r-15l

5 0
3 years ago
Read 2 more answers
Please provide answer and work to show how you got the answer!!
yan [13]
X=8
Here my
Work message me if u have questions

7 0
2 years ago
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The governor is making a visit to your school and you need to assign seating for 14 students. unfortunately there are only six s
Serjik [45]
First seat: 14 candidates to seat
Second seat: 13 candidates to seat
Third seat : 12 candidates
4th seat: 11 candidates
5th seat: 10 candidates
6th seat: 9 candidates

Number of different variations: 14*13*12*11*10*9 = 2,162,160 different ways,


Observe that is 14P6 = 14! / (14-6)! = 14! / 8! = 14*13*12*11*10*9*8! / 8! =

= 14*13*12*11*10*9 

Answer: 2,162,160
4 0
2 years ago
The product of any two numbers is composite ( true/false) and why?
Reptile [31]
<u><em>FALSE.</em></u><em></em> 
A composite number is the opposite of a prime number. This is false because of the possibility of the following scenario:
The two numbers are 1 and a prime number.
This is because <em>one multiplied by any number is that number.</em> A prime number cannot become a composite number just because it is being multiplied by one. For example:
1 x 7 = 7 (prime) 
Hope this helps!
~<em>Archimedes El</em>∈<em>ven</em>
7 0
3 years ago
(5x+6xy-4)-(-6x+7xy+2)
Maslowich

Answer: 11x - xy - 6

Step-by-step explanation:

(5x+6xy-4)-(-6x+7xy+2)

5x + 6xy - 4 + 6x - 7xy -2

11x - xy - 6

3 0
3 years ago
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