Complete the equations below. please please

[tex]\displaystyle \begin{cases} 2y=x-4 \\4x+3y=5 \end{cases } \Rightarrow \ominus \left \{ {{x-4=2y} \ | \cdot 4 \atop {4x+3y=5}} \right. \Rightarrow \\\\\\ 4x-16-4x-3y=8y-5 \\\\ -3y-16=8y-5 \\\\ -3y-8y=16-5 \\\\-11y=11 \\\\ y=-1 \ \ ; \ \ x=2y+4=2 \\\\ \rm Answer : \ (2 \ ; \ -1 )[/tex]

Answer:

3

Step-by-step explanation:

Answer: 7(3x+1)

Step-by-step explanation:

there is a common factor of 7 in both 21 and 7. therefore you can take a 7 out of the equation to get 7(3x+1)

extra: 7 times 3x = 21x and 7 times 1 = 7. this is how you verify your answer is correct.

Answer:

send your # and ill help you over call

Graph attached

Shading should be done from 3 to 15/2 or 7.5

It should be open dot

9514 1404 393

Answer:

  3(4/3)^2543

Step-by-step explanation:

Using logarithms base 2, we have ...

  [tex](a_n)^{\log{a_n}}=(a_{n+1})^{\log{a_{n-1}}}\\\\(\log{a_n})(\log{a_n}) = (\log{a_{n-1}})(\log{a_{n+1}}) \\\\ \dfrac{\log{a_{n+1}}}{\log{a_{n}}}=\dfrac{\log{a_n}}{\log{a_{n-1}}}=\dots\dfrac{\log_2{16}}{\log_2{8}}=\dfrac{4}{3}[/tex]

That is, the ratio of each term to the previous is a constant equal to 4/3. This is the definition of a geometric sequence. This sequence has first term 3 and common ratio 4/3, so the general term is ...

  [tex]\log_2 a_n=3\left(\dfrac{4}{3}\right)^{n-1}[/tex]

and the 2544th term is ...

  [tex]\boxed{\log_2{a_{2544}}=3\left(\dfrac{4}{3}\right)^{2543}}[/tex]

Answer:

6 boxes have 48 books

10 boxes have 80 books

n boxes have n×8 books

Step-by-step explanation:

if one box has 8 books then n no.of boxes will have n × 8 no.of books

Answer:

C (i think)

Step-by-step explanation  

i did the math in my head sorry if it is wrong but i am pretty sure it's C

Answer:

What is 3

Step-by-step explanation:

4 - 1 = 3.

Answer:

Where's the question???????

Answer:

0.2

Step-by-step explanation:

If it takes 10 seconds to move 1 centimetres, and you want to know about 2 seconds, you can divide by 5 on both sides.

1/5 = 0.20

It takes 2 seconds to move 0.2 centimetres (aka 20 milimetres).

The snail will travel 0.2 centimetre in 2 seconds.

it takes the snail 10 seconds to move 1 centimetre. The means in every 10 seconds the snail moves 1 centimetre.

The distance the snail can cover in 2 seconds can be computed below:

10 seconds = 1 cm

2 seconds = ? cm

cross multiply

distance it takes the snail to travel in 2 seconds = 2 / 10

distance it takes the snail to travel in 2 seconds = 1 / 5

distance it takes the snail to travel in 2 seconds = 0.2 cm

Therefore, the snail will travel  0.2 cm in 2 seconds .

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Answer:

7261.92

Step-by-step explanation:

Product means you mutilpy them together

Answer:

7261.92

Step-by-step explanation:

Hope this helps!

Answer:

Step-by-step explanation:

https://answer.ya.guru/questions/6481809-which-number-line-correctly-represents-the-irrational-numbers.html

Answer:

i dont know because you didnt give number but is one -17 is so its that

Step-by-step explanation:

Answer:

x = -20

Step-by-step explanation:

Add 14 to both sides to isolate the x:

x - 14 + 14 = -34 + 14

x = -20

Hope this helps!

Step-by-step explanation:

hope it helps!!!!!!!!!

Answer:

(x-24)(x-1)

Step-by-step explanation:

common sense + practice

kinda did it in my head

Answer:

7x

Step-by-step explanation:

x +2x + x + x + x + x

= x + x + x + x + x + 2x

= 5x + 2x

= 7x

Answer:

-16 Degrees

Step-by-step explanation:

Just subtract: 2-18=negative 16 --> -16

Answer:

30 degrees

Step-by-step explanation:

Since all triangles' angles add up to 180 degrees, you can add the sum of the angles you already know and subtract it from 180.

126+24=150

180-150=30

so angle Q = 30 degrees

60%

Step-by-step explanation:

(136 - 85)/85 × 100%

= 51/85 × 100%

= 51/17 × 20%

= 3 × 20%

= 60%

Answer:

p^2 - p - 12

Step-by-step explanation:

Hope this helps! Pls give brainliest!

Answer:

[tex](p - 4)(p + 3) = {p}^{2} + 3p - 4p - 12 \\ = {p}^{2} - p - 12[/tex]

Answer:

[tex]3 + d \leqslant 3 - d \\ d + d \leqslant 3 - 3 \\ 2d \leqslant 0 \\ d \leqslant 0 \\ thank \: you[/tex]

1) Cancel 3 on both sides

d≤−d

2) Subtract -d from both sides.

d+d≤0

3) Simplify  d+d  to  2d.

2d≤0

4)  Divide both sides by 2.  

d≤0

Answer:

x=5

Step-by-step explanation:

Answer:

9

Step-by-step explanation:

Plug the -3 value into the equation.

3( -3 ) / -3 + 2

-9 / -1

negative divided by a negative gives a positive result

9

Answer:

D. y = 2x

Step-by-step explanation:

The slope of the line is 2, so you get 2x. Therefore, the equation is y = 2x.

Answer:

the equation is answer D

Step-by-step explanation:

the slope is 2 and the y-intercept (b) is zero so it isn't written.

Based on the information given in the question, the completion time of runner B is lower than that of Runner A ; Hence, runner B completed the race faster.

Given the running time of two runners :

The runner with the lesser running time will complete the marathon faster as this means he has a higher speed.

Comparing the running times of both runners :

Therefore, Runner B completed the race faster than runner A.

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