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Zielflug [23.3K]

2 years ago

13

What is the mean? 2, 5, 4, 8, 4, 10, 2 TYPE ONLY THE NUMERIC ANSWER

1 answer:

laiz [17]2 years ago

4 0

Answer:

5

Step-by-step explanation:

Do you want to answer my most recent question on my profile? Free 50 points and it's just a one-question survey.

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PLEASE HELP making brainliest if correct

nexus9112 [7]

Answer:

im pretty sure its B

Step-by-step explanation:

im so sorry if im wrong tho

6 0

2 years ago

Carrie and Diana ate lunch at a restaurant.

astra-53 [7]

Answer:

B) 27.75

Step-by-step explanation:

12.99+3.25=16.24

Half the tip is 5

5+16.24=21.24

Half the pizza is 6.51

21.24+6.51=27.75

5 0

3 years ago

Read 2 more answers

What is the solution of the system? Use elimination.

sweet [91]

Answer:

The solutions to the system of the equations by the elimination method will be:

$x=2,\:z=-1,\:y=2$

Step-by-step explanation:

Given the system of the equations

$2x\:+\:2y\:+z\:=\:7$

$-x-\:y\:+z\:=\:-5$

$x+3y-4z=12$

solving the system of the equations by the elimination method

$\begin{bmatrix}2x+2y+z=7\\ -x-y+z=-5\\ x+3y-4z=12\end{bmatrix}$

$\mathrm{Multiply\:}-x-y+z=-5\mathrm{\:by\:}2\:\mathrm{:}\:\quad \:-2x-2y+2z=-10$

$\begin{bmatrix}2x+2y+z=7\\ -2x-2y+2z=-10\\ x+3y-4z=12\end{bmatrix}$

$-2x-2y+2z=-10$

$+$

$\underline{2x+2y+z=7}$

$3z=-3$

$\begin{bmatrix}2x+2y+z=7\\ 3z=-3\\ x+3y-4z=12\end{bmatrix}$

$2x+6y-8z=24$

$-$

$\underline{2x+2y+z=7}$

$4y-9z=17$

$\begin{bmatrix}2x+2y+z=7\\ 3z=-3\\ 4y-9z=17\end{bmatrix}$

Rearranging the equations

$\begin{bmatrix}2x+2y+z=7\\ 4y-9z=17\\ 3z=-3\end{bmatrix}$

solve $3z=-3$ for z:

$z=-1$

$\mathrm{For\:}4y-9z=17\mathrm{\:plug\:in\:}z=-1$

solve $4y-9\left(-1\right)=17$ for y:

$4y-9\left(-1\right)=17$

$4y+9=17$

$4y=8$

$y=2$

$\mathrm{For\:}2x+2y+z=7\mathrm{\:plug\:in\:}z=-1,\:y=2$

solve $2x+2\cdot \:2-1=7$ for x:

$2x+2\cdot \:2-1=7$

$2x+3=7$

$2x=4$

$x=2$

Therefore, the solutions to the system of the equations by the elimination method will be:

$x=2,\:z=-1,\:y=2$

5 0

2 years ago

castortr0y [4]

Answer:

y = |3x|

Step-by-step explanation:

3 0

3 years ago

I need help??????????????

Likurg_2 [28]

Answer:

20

Step-by-step explanation:

$50*0.40=20$

7 0

2 years ago

Read 2 more answers