Sy = x+3
3. Solve
by substitution.
2x + y = -6
What is the solution?
A (-9, -6)
B (-3,0)
C (-1,2)

Answer:

if you are asking us then probably a... hmmm -_- 3 yes
3 out of 10

Step-by-step explanation:

Answer: we’ll first to find how “smart” you are, we have to verify the level of unsmartness and see if there is any given number. Since the is no given number we will use x as our unknown number. Then we will subtract 1 from 10, therefore giving us the number 9 that we will use in our equation to determine the level of “smart”.

Now we will put 9 and x together:

9x

Now we will find the next part of our equation which will find by looking at how we got the number 9, which is: 10-1

Now we group the parts of this equation which will be:

9x÷10-1

First we will solve one side of our equation

10-1=9

Then we will insert the solved side of the equation

9x÷9

Now we will divide

9/9x
we are left with 1

x=1

Now we insert our solved number back into our previous equation with 1 replacing x

9⋅1÷10-1

Now after we have solved the equation

The answer is: -0.1 will be your level of “smart”

Answer:

450

Step-by-step explanation:

Multiply the length (30) by the width (15)

30x15=450

Answer:

[tex]\frac{\sqrt[4]{10xy^3}}{2y}[/tex]

Step-by-step explanation:

I am assuming you want me to rationalize the denominator.

Answer:

3 25/36

Step-by-step explanation:

16 4/9 - 12 3/4 = 3 25/36

Answer:

[tex]x + 12 \frac{3}{4} = 16 \frac{4}{9} \\ \\ x + \frac{51}{4} = \frac{148}{9} \\ \\ x = \frac{148}{9} - \frac{51}{4} \\ \\ x = \frac{592}{36} - \frac{459}{36} \\ \\ x = \frac{133}{36} \\ \\ \\ x = 3 \frac{25}{36} [/tex]

So; the number

[tex]3 \frac{25}{36} [/tex]

Answer:

18.3

Step-by-step explanation: Here i'll give you my notes for finding original price

1. make the percent into a decimal

2. subtract the decimal by 1

3. divide the number you just got and the decimal you got from the first step

Answer:

IT  IS THE LAST ONE

I did this a long time ago

Answer: -27

Step-by-step explanation:

Answer:

405

Step-by-step explanation:

because u have to do half of 8 which is 4 then u got to plug it in

Answer:

Step-by-step explanation:

77 points. 82*4=328 328-72-97-82=77 You can check this by adding 77,72,97, and 82, and divide it by 4

Answer:

8x + 2

Step-by-step explanation:

It's really quite simple!

Take not of the equation, 5x + 2 + 3x

As 5x and 3x have the same term, you can add them up together, giving you 8x.

Add the 2 on, and you have your answer!

Answer:

8x+2

Step-by-step explanation:

5x + 3x = 8x and 1+1=2

so the answer is 8x+2

Answer:

C

Step-by-step explanation:

Did this got it correct trust me.

Help me
The Native Americans had many established cultures and customs. Who brought the same to the United States?

The Colonists

The Canadians

The Chinese

None of the above

Who were the first European settlers in North America?

The English

The Vikings

The Native Americans

The French

Answer:

I don't know the y-intercept but the slope is 1/3

Answer:

y=1/3x+4

Step-by-step explanation:

Answer:

[tex]66\frac{2}{3}%[/tex]

Step-by-step explanation:

He has 3 pairs of sneakers:

1 Black

1 Blue

1 White

2 out of 3 are not blue.

This can be written as 2/3

Percentage is a certain number over the denominator of a base ten numeral.

2/3 = [tex]66\frac{2}{3}[/tex]%

Hope this helps :)

Have a great day!

Answer:

Step-by-step explanation: y=2x−3

Answer:

I think it the first one is

[tex]\textit{Law of sines} \\\\ \cfrac{sin(\measuredangle A)}{a}=\cfrac{sin(\measuredangle B)}{b}=\cfrac{sin(\measuredangle C)}{c} \\\\[-0.35em] ~\dotfill[/tex]

[tex]\cfrac{sin(B)}{\overline{AC}}=\cfrac{sin(C)}{\overline{AB}}\implies \cfrac{sin(38^o)}{9}=\cfrac{sin(C)}{11}\implies \cfrac{11\cdot sin(38^o)}{9}=sin(C) \\\\\\ sin^{-1}\left[ \cfrac{11\cdot sin(38^o)}{9} \right]=sin^{-1}\left[ sin(C) \right]\implies sin^{-1}\left[ \cfrac{11\cdot sin(38^o)}{9} \right]=\measuredangle C \\\\\\ 48.81^o\approx \measuredangle C~\hspace{10em} therefore\qquad 180-38 - 48.81 ~~\approx ~~\stackrel{\measuredangle A}{93.19^o}[/tex]

Make sure your calculator is in Degree mode.

Answer:

X going up by 4s  Y going up by 16s

Step-by-step explanation:

X

-7+4=-3

-3+4=1

1+4=5

And so on...

Y

-28+16=-12

-12+16=4

4+16=20

And so on...

If this is meant for slope then you would use the formula m=y2-y1/x2-x1

You can use -12 to equal y2 and -21 to equal y1

You can use -3 to equal x2 and -7 to equal x1

Now your equation should be...

m=-12-(-21)/-3-(-7)

m=9/4

9 is the rise

4 is the run

the slope is 9/4

Y-intercept for would be...

m=9/4x

Hope this helps :)

Answer:

the answer is 42 m2

Step-by-step explanation:

7×6=42

Step-by-step explanation:

[tex] \sin(x - y) + \sin(x + y) = 2 \sin(x) \cos(y) [/tex]

We use the sum and difference identities.

Remeber the sum difference identity is

[tex] \sin(x + y) = \sin(x) \cos(y) + \cos( x ) \sin(y) [/tex]

and

[tex] \sin(x - y) = \sin(x) \cos(y) - \sin(x) \cos(y) [/tex]

So we get

[tex] (\sin(x) \cos(y) - \sin(y) \cos(x) ) + \sin(x) \cos(y) + \sin(y) \cos(x) [/tex]

Combine like Terms.

[tex]2 \sin(x) \cos(y) = 2 \sin(x) \cos(y) [/tex]

We have provided it.

Answer:

0.4

Step-by-step explanation:

Hope this helps

Answer:

b x h divided by 2
=4x6 divided by 2
=24 divided by 2
=12

Step-by-step explanation:

Answer is 12 if I follow the formula :)

Answer:

Common difference:6 3 terms: -15, -9. -3

Step-by-step explanation:

-39, -33, -27, and -21 all have a difference of 6.

Answer:

A=66

Step-by-step explanation:

P=2(L+W)                             A= 11x6=66

34=2(x+5+x)

34=2(2x+5)

34/2 = 17

17=(2x+5)

17-5=12

12 divided by 2=6

so witch = 6 so 6+5=11 L= 11

Answer:

Hypotenuse is 85

Step-by-step explanation:

Use the Pythagorean theorem to solve:

a^2+b^2=c^2

Answer:

85

Step-by-step explanation:

Pythagorean Theorem

a^2 + b^2 = c^2

Therefore

68^2 = 4624

51^2 = 2601

4624+2601 = 7225

square root of 7225 = 85

4/3 ÷ 5/2

4/3 × 2/5 (by reciprocal)

8/15

Therefore, 8/15 is the correct answer