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3 years ago

12

Samatha has $300 for guitar lessons to learn her favorite song.mrs. Jones charges $80 per lesson and requires three lessons to t

each Samatha the song. mr. Beliz charges $62 per lesson and will require four lessons to teach Samatha the song. Which is a better deal for samantha?

1 answer:

never [62]3 years ago

8 0

Mrs.Jones is a better deal for Samantha

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What is the length of side ab<br> -6<br> -12<br> -9<br> -8

Sedaia [141]

option third is correct answer

In parallelogram ,opposite sides are equal.

x+3=2x-6

solve the value you will get x=9

6 0

3 years ago

Solve the system of linear equations, using the Gauss-Jordan elimination method. (If there is no solution, enter NO SOLUTION. If

jonny [76]

Answer:

Infinitely solution exists,

Required solution is, $(x_1,x_2,x_3)=(0, 4(1-t),t)$

Step-by-step explanation:

We have the given equations:

$x_1+2x_2+8x_3=8$

$x_1+x_2+4x_3=4$

Here, the augmented matrix is :

$\left[\begin{matrix}1&2&8&8\\1&1&4&4\end{matrix}\right]$

Now, find the echelon form of the augmented matrix.

$=\left[\begin{matrix}1&2&8&8\\0&-1&-4&-4\end{matrix}\right]^{R_1\rightarrow R_2-R_1}$

$=\left[\begin{matrix}1&0&0&0\\0&-1&-4&-4\end{matrix}\right]^{R_1\rightarrow R_1+2R_2}$

Therefore, $x_1=0$

$-x_2-4x_3=-4$

$\Rightarrow x_2=4(1-x_3)$

Let $x_3=t$ , then the required solution is

$(x_1,x_2,x_3)=(0, 4(1-t),t)$

5 0

3 years ago

Please help me out on this question

Mariulka [41]

At x=2, y=4

At x=4, y=16

So the total change in y from x=2 to x=4 is 16-4=12

And since average rate of change = total change in y divided by total change in x within the same period, therefore the answer is 12/2 = 6

Hope that helps. Let me know if you have any questions.

7 0

4 years ago

Luke can paint 91 portraits in 7 weeks.

lidiya [134]

Hey!

91 ÷ 7 = 13

So, we know that Luke paints one portrait every week.

13 × 4 = 52

So, Luke paints 52 portraits in 4 weeks.

8 0

3 years ago

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15. A door wedge is shaped like a triangular prism. The wedge is filled with sand. How

kvasek [131]

Answer:362

Step-by-step explanation:

You need to multiply

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3 years ago

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