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

Answers

Answer 1

Answer:

B.(-3,0)

Step-by-step explanation:

2 (-3) + 0 = -6

2 x (-3) = -6

-6 + 0 = -6


Related Questions

How smart am I from a scale of 1-10?

Answers

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”

What is the surface area of a tank that has a length of 30 feet, a width of 15 feet?

Answers

Answer:

450

Step-by-step explanation:

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

30x15=450

please help please please help
i have tried everything i could think of but i cant figure it out

Answers

Answer:

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

Step-by-step explanation:

I am assuming you want me to rationalize the denominator.

The sum of a number and 12 3/4 is 16 4/9. Find the number.

Answers

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]

Clare bought a new pair of shorts for $ 13.75. This was 25% off the regular price. What was the original price? ( Round your answer to the nearest cent.)

Answers

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

I need Help ASAP I will give you brainlest and plus 5 stars ✨✨and plus thanks and 50 points EVeryONe need help this is due today so plz help me I need to turn it in today so plz help I will give everything if you do

Answers

Answer:

IT  IS THE LAST ONE

I did this a long time ago

What is the y intercept of the equation Y+9=6(x-3)

Answers

Answer: -27

Step-by-step explanation:

Coach Tim needs to fill five
volleyballs with air. If each
volleyball has a diameter of 8
inches, what s the total volume
of air that Coach Tim will
heed? Round to the nearest
whole number.

Answers

Answer:

405

Step-by-step explanation:

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

Maria scored 72, 97, and 82 on her first three math tests. She wants to have a mean score of 82 for the quarter. How many points does she need on her last test to earn an 82 for the quarter?

Answers

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

omg help plz i hate ixl

Answers

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

Which table represents a linear function?

Answers

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

A walking path across a park is represented by the equation y=-3x - 6. A
new path will be built perpendicular to this path. The paths will intersect at
the point (-3, 3). Identify the equation that represents the new path.
10+
-10
10
101
o A. y=-3x+2

Answers

Answer:

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

Answer:

y=1/3x+4

Step-by-step explanation:

While in detention, Greg and some other naughty kids wrote symbols on a desk. Dina wrote one more symbol than Greg. Vivian wrote one more symbol than Dina, and Yuri wrote one more symbol than Vivian. How many symbols did Vivian write if the teacher made them wash 142 symbols off the desk?

Answers

vivian wrote 36 symbols.

34(greg)+35(dina)+36(vivian)+37(yuri)=142

ABC is a right angle. If B is 90 degrees, AC is 96 cm, C is 30 degrees, how many cm is AB?

Answers

37 is the answer in my opinion

Adam Sandler has 3 pairs of sneakers. They are black, blue and white. If he randomly chooses a pair, what is the probability he will NOT choose the blue pair?

Answers

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!

Write the equation
of a line that has
m = 2 and
b = - 3.

Answers

Answer:

Step-by-step explanation: y=2x−3

An equilateral triangle has an altitude of 21 inches. What is the side length of the triangle?

14√2
7√2
7√3
14√3

55 points simple question!

Answers

Hey, here’s your answer :)

Select all the correct graphs.
Which graphs are the graphs of even functions?

Answers

Answer:

I think it the first one is

Work out the size of angle A

Answers

[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.

Solve the problem and EXPLAIN!

Answers

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 :)

What is the area of a parallelogram with a base of 7 meters and a height of 6 meters?
26 m2
42 m2
13 m2
35 m2

Answers

Answer:

the answer is 42 m2

Step-by-step explanation:

7×6=42

Sin(x-y)+sin(x-y prove the identity

Answers

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.

Simplify
(4/5x+1)+(2/5x-1)

Answers

Answer:

0.4

Step-by-step explanation:

Hope this helps

To find the area of a triangle, you can use the expression b × h ÷ 2, where b is the base of the triangle and h is its height. What is the area of a triangle with a base of 4 and a height of 6?
please help me due soon!!

Answers

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 :)

Blake and Jacob went shopping for
back to school clothes. Blake bought
three shirts and one pair of pants
and spent $38.00. Jacob bought four
shirts and three pairs of pants and
spent $71.50. Assuming the shirts
and pants were the same price.
What was the cost of each?
Answer (Shirt, Pants)

Answers

Each shirt cost $8.50. Each pants cost $12.50.

find the common difference and the three terms in the sequence after the last one given -39 -33 -27 -21​

Answers

Answer:

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

Step-by-step explanation:

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

The length of a rectangle is 5 cm longer than its width.
If the perimeter of the rectangle is 34 cm , find its area.

Answers

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

pls help me plssssssss​

Answers

See picture attached

the hypotenuse of 68 and 51

Answers

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

Find the value of 4/3 ÷ 5/2

Answers

4/3 ÷ 5/2

4/3 × 2/5 (by reciprocal)

8/15

Therefore, 8/15 is the correct answer

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