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3 years ago

11

Emily earns a base salary of $250.00 every week with an additional 8% commission on everything she sells. If Emily sold $1100.00

worth of items last week, what was her total pay?

2 answers:

andriy [413]3 years ago

7 0

Answer:

Step-by-step explanation:

250 + 0.08(1100) = 250 + 88 = 338 <===

VARVARA [1.3K]3 years ago

6 0

250 + 0.08(1100) = 250 + 88 = 338 <===

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2 years ago

Help please!!!!!!!!!

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ANSWER

24

EXPLANATION

For a matrix A of order n×n, the cofactor $C_{ij}$ of element $a_{ij}$ is defined to be

$C_{ij} = (-1)^{i+j} M_{ij}$

$M_{ij}$ is the minor of element $a_{ij}$ equal to the determinant of the matrix we get by taking matrix A and deleting row i and column j.

Here, we have

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M₁₁ is the determinant of the matrix that is matrix A with row 1 and column 1 removed. The bold entries are the row and the column we delete.

$\begin{aligned} A=\begin{bmatrix} \bf 1 & \bf -6 & \bf -4\\ \bf 7 & 0 & -3 \\ \bf -9 & 8 & -8 \end{bmatrix} \implies M_{11} &= \text{det}\left(\begin{bmatrix} 0&-3 \\ 8&-8 \end{bmatrix} \right) \end{aligned}$

Since the determinant of a 2×2 matrix is

$\det\left( \begin{bmatrix} a & b \\ c& d \end{bmatrix} \right) = ad-bc$

it follows that

$\begin{aligned} A=\begin{bmatrix} \bf 1 & \bf -6 & \bf -4\\ \bf 7 & 0 & -3 \\ \bf -9 & 8 & -8 \end{bmatrix} \implies M_{11} &= \text{det}\left(\begin{bmatrix} 0&-3 \\ 8&-8 \end{bmatrix} \right) \\ &= (0)(-8) - (-3)(8) \\ &= -(-24) \\ &= 24 \end{aligned}$

so $C_{11} = M_{11} = 24$

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3 years ago

Hiii please help! i’ll give brainliest if you give a correct answer tysm!

Stolb23 [73]

Multiply 9 and 5 then multiply by .5 giving you 22.5 so I’d say that’s your best option

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