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malfutka [58]
3 years ago
15

HELP ME GUYS PLEASE!!! :)

Mathematics
2 answers:
Keith_Richards [23]3 years ago
5 0

Answer:

(10,-2)

Step-by-step explanation:

You can see that the first equation has already given as x-isolated equation aka x = 10.

With this, you can substitute x = 10 in the second equation 3x+5y = 20 then solve for y.

3(10)+5y=20

30+5y=20

<em>Subtract both sides by 30.</em>

5y=-10

<em>Divide both sides by 5.</em>

y=-2

So from x = 10 and y = -2, we can write as (10,-2) in coordinate form.

valina [46]3 years ago
3 0

Answer:

(10,-2)

Step-by-step explanation:

since they already give u x, u can just sub it into the other equation

3(10)+5y=20

30+5y=20

5y=20-30

5y=-10

y=-2

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In a cohort of 35 graduating students, there are three different prizes to be awarded. If no student can receive more than one p
sweet [91]

We have been given in a cohort of 35 graduating students, there are three different prizes to be awarded. We are asked that in how many different ways could the prizes be awarded, if no student can receive more than one prize.

To solve this problem we will use permutations.

_{r}^{n}\textrm{P}={_{3}^{35}\textrm{P}}

We know that formula for permutations is given as

_{r}^{n}\textrm{P}=\frac{n!}{(n-r)!}

On substituting the given values in the formula we get,

{_{3}^{35}\textrm{P}}=\frac{35!}{(35-3)!}=\frac{35!}{32!}

=\frac{35\cdot 34\cdot 33\cdot 32!}{32!}\\&#10;\\&#10;=35\cdot 34\cdot 33=39270

Therefore, there are 39270 ways in which prizes can be awarded.


6 0
3 years ago
Math sucks at times and we all know that. So, instead of coming onto Brainly for every answer to your math, this website gives y
skelet666 [1.2K]

Answer:

thanks

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Are 8÷2 and 2÷8 equivalent
xenn [34]

No they are not.

8÷2=4

2÷8=0.25

5 0
4 years ago
During the early part of the 1994 baseball season, many sports fans and baseball players noticed that the number of home runs be
Ratling [72]

Answer:a

 a

    m  = 57.5

b

   \= x  = 50.14

Step-by-step explanation:

From the question we told that

  The stem plots for American League is

                  2\\3\ \ \ \ \ 5\\4 \ \ \ \ \ 0\  3 \ 9\\5 \ \ \ \ \ 1\ 4\ 7\ 8\ 8\\6 \ \ \ \ \ 4\ 8\ 8\\7 \ \ \ \ \ 5\ 7

Here the first column  is the tens while each digit in the in the second column is the unit of the first column

  For example row 3 means

      40 , 43, 49

The  sample  size is  n = 14  

Generally the median is mathematically represented as

         m  =  \frac{ K  +  Z}{2}

Here  K is the (\frac{n}{2}) th  \  term \ in \ the \  data \  given i.e  \frac{14}{2}  =  7th \  term

 From the stem plot the 7th term is  57

And

       K is the (\frac{n}{2} + 1) th  \  term \ in \ the \  data \  given i.e  \frac{14}{2} + 1 =  8th \  term

 From the stem plot the 8th term is  58

Thus the median is  

          m  =  \frac{ 57  +  58}{2}

=>       m  = 57.5

The stem plots for National League is

            2\ \ \  9\\3\ \ \ \ 1\\4 \ \ \ \ 2\ 6\ 7\ 8\ 8\\5 \ \ \ \  3\ 5\ 5\ 5\\6 \ \ \ \  3\ 3\ 7\\7\\

Generally the mean is mathematically evaluated as

           \= x  =  \frac{\sum x_i}{n}

           \= x  =  \frac{29 + 31 + 42 + 46 + 47 + 48 + 48 + 53 + 55+ 55+ 55+ 63+ 63+ 67}{14}

         \= x  = 50.14

5 0
4 years ago
Help me please I’ll give the the Brainlyest thing
murzikaleks [220]

the answer is d hope I helped

5 0
3 years ago
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