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MakcuM [25]
3 years ago
5

Solve -4/5x =12 please help

Mathematics
2 answers:
fgiga [73]3 years ago
6 0

Answer:-15

Step-by-step explanation:

-4x/5=12

5x-4x/5=5x12

-4x=5x12

-4x=60

-4x/-4=60/-4

x=-15

nika2105 [10]3 years ago
3 0

Answer:

-15

Step-by-step explanation:

-4x/5=12

-4x=12×5

-4x=60

-4x/-4=60/-4....cancel the -4s...

x=-15

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andrew11 [14]

The new matrix that is formed by the 3A + B is given below. Then the value of x is 102.

\begin{bmatrix} w & z \\y & z \\\end{bmatrix} =  \begin{bmatrix} 46 & 102 \\15 & -2 \\\end{bmatrix}

<h3>What is the matrix?</h3>

A matrix is a specific arrangement of items, particularly numbers. A matrix is a row-and-column mathematical structure. The a_{ij } element in a matrix, such as M, refers to the i-th row and j-th column element.

The matrices are given below.

\rm A = \begin{bmatrix}9 & 27 \\0 & 6 \\\end{bmatrix}\\\\\\B = \begin{bmatrix}19 & 21 \\15 & -20\\\end{bmatrix}

Then the new matrix is given as 3A + B. Then we have

\rm 3A + B =\begin{bmatrix} w & z \\y & z \\\end{bmatrix}\\\\\\3A + B =3 \times  \begin{bmatrix}9 & 27 \\0 & 6 \\\end{bmatrix} + \begin{bmatrix}19 & 21 \\15 & -20\\\end{bmatrix}\\\\\\3A + B = \begin{bmatrix}27& 81\\0 & 18\\\end{bmatrix} + \begin{bmatrix}19 & 21 \\15 & -20\\\end{bmatrix}\\\\\\3A + B = \begin{bmatrix} 46 & 102 \\15 & -2 \\\end{bmatrix}

More about the matrix link is given below.

brainly.com/question/9967572

#SPJ1

5 0
3 years ago
Please help me with 19 and 20
stiv31 [10]

Answer:

id have to see the chart to help you

i can see k which the answer for 19).is (0,-3)

but for 20 id have to see the chart

Step-by-step explanation:

if you add a picture of the chart i can help:)

4 0
3 years ago
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