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Sedbober [7]
3 years ago
13

Question 12 onlyyyyyyyy

Mathematics
1 answer:
netineya [11]3 years ago
5 0
For number 12 you need to make an expression using the information given. a) 25g + 18r + 15b could be the expression.
b) The variables would be 25g for the 25 gold seats, 18r for the 18 red seats and 15b for the 15 blue seats. 
c) Plug in the number given according to the variables.
       25(100) + 18(250) + 15(200)
             2500 + 4500 + 3000
                   7000 + 3000
                        $10,000
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√25 + √144<br>who can solve please​
Masja [62]

Answer:

17

Step-by-step explanation:

√25 = 5

√144 = 12

5 + 12 = 17

Please mark me Brainliest :)

5 0
3 years ago
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What is the value of y in the solution to the system of equations? x + y = 1 2x – 3y = –30
Sauron [17]
X + y = 1.....multiply by -2
2x - 3y = -30
-----------------
-2x - 2y = -2 (result of multiplying by -2)
2x - 3y = -30
----------------add
-5y = -32
y = -32/-5
y = 32/5 or 6.4 <===

7 0
3 years ago
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Im so lost and confused
Katen [24]
Evaluating determinants. Attached solution.

7 0
3 years ago
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7. Evaluate 4P2<br><br> O<br><br> 22<br><br> O<br><br> 12<br><br> O<br><br> 14<br><br> 5
Reika [66]

Answer:

<h2>12</h2>

Step-by-step explanation:

To evaluate 4P2, we will use the permutation formula as shown;

nPr = \frac{n!}{(n-r)!}

4P2 = \frac{4!}{(4-2!}

= \frac{4!}{2!} \\= \frac{4*3*2!}{2!}\\ = 4*3\\= 12

4P2 = 12

5 0
3 years ago
You want to distribute 7 candies to 4 kids. If every kid must receive at least one candy, in how many ways can you do this?
Sergeeva-Olga [200]

Answer:

  20  

Step-by-step explanation:

Once you give 1 candy to each of the 4 kids, you will have 3 remaining. The number of ways those can be distributed to 4 kids is given by ...

  (n+k-1)C(n)

where n is the number of candies, and k is the number of kids. "aCb" is the number of ways a can be taken b at a time:

  aCb = a!/(b!(a-b)!)

For n=3 and k=4, this is ...

  (3+4-1)C(3) = 6C3 = 6!/(3!·3!) = 20

There are 20 ways to distribute 7 candies to 4 kids so that each kid receives at least one.

5 0
3 years ago
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