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Radda [10]
2 years ago
10

Fifteen students were divided into two classrooms in a ratio of 1:2.

Mathematics
1 answer:
IgorC [24]2 years ago
3 0
The answer: In Classroom 1, there are 5 students while in Classroom 2, there are 10 students.

Explanation:
x + 2x = 3x
3x = 15
x = 5, Classroom 1 = 5, Classroom 2 = 5 x 2 = 10

I hope that this helps! :)
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What is the third term of the sequence defined by the recursive rule?<br> f(1) = 2 f(n)= 2f(n-1)+1
8090 [49]
The way you worded the question kind of confuses me but i'll try to answer.

Think of recursion like climbing a ladder; in this type of sequence you start out somewhere, usually n. So in f(n-1)+1, you take n (where you started) and "step down" once, and then step up once (which brings you back where you were). Remember PEMDAS when doing these.
8 0
3 years ago
Make a Matlab script to make row 2 of matrix A equal to first row of A multiplied by the negative of the first element of row 2
stira [4]

Answer:

X=\begin{Bmatrix}2& 1 &10 \\-3 & 5 & 4\end{Bmatrix}

Step-by-step explanation:

From the question we are told that

Matrix is given as A=\begin{Bmatrix}2 & -1 & 10\\-3 & 8 & 4\end{Bmatrix}

Generally let the change in matrix be given as X

X_1_2 = 2*(-(-1)) + - 1 = 1X_2_2 = -3 * (-(-1))+ 8 = 5

Matlab output

A=[2 -1 10;-3 8 4]\\a=(A(1,1)*-A(1,2))+A(1,2)\\b=(A(2,1)*-A(1,2))+A(2,2)\\X=[A(1,1) a A(1,3); A(2,1) b A(2,3)]\\

Generally the matrix that makes row 2 of matrix A equal to first row of A multiplied by the negative of the first element of row 2 plus the original row is

X=\begin{Bmatrix}2& 1 &10 \\-3 & 5 & 4\end{Bmatrix}

6 0
3 years ago
B) 4364 * 1001 - 4364 (Ans 4364000)<br><br><br>Give the answer ​
maks197457 [2]

Answer:

  • 4364000

Step-by-step explanation:

  • 4364 * 1001 - 4364 * 1 =
  • 4364 * (1001 - 1) =
  • 4364 * 1000 =
  • 4364000
8 0
3 years ago
Answer?someone help me
uranmaximum [27]

Answer:

The angles in the diagram add up to 90°

To find x add the two angles and equate them to 90°

That's

8x + 50 = 90

8x = 90-50

8x = 40

Divide both sides by 8

8x/8 = 40/8

x = 5

Hope this helps you

8 0
4 years ago
Which is closer to 2400 rounded to the nearest 100 2,493 or 2,353
erik [133]
It is 2353 because if you round it to the nearest hundreds also, it will be 2400 
5 0
3 years ago
Read 2 more answers
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