Solve the system using elimination and describe your steps.

3x + y = 9
5x + 4y = 22
-------------------

Answers

Answer 1

Answer:

x = 2,  y=3

Step-by-step explanation:

3x + y = 9

5x + 4y = 22

Multiply the first equation by -4

-4(3x + y) = 9*-4

-12x -4y = -36

Add this to the second equation to eliminate y

-12x -4y = -36

5x + 4y = 22

---------------------------

-7x    = -14

Divide each side by -7

-7x/-7 = -14/-7

x = 2

Now find y

3x+y = 9

3(2) +y = 9

6+y = 9

Subtract 6 from each side

-6+6 +y = 9-6

y = 3

Answer 2

Answer:

x = 2, y = 3

Step-by-step explanation:

3x + y = 9 (1)

5x + 4y = 22 (2)

Multiply equation (1) by -4 and add to equation (2)

-12x - 4y = -36

5x + 4y = 22

-7x = -14

x = 2

Using any equation, solve for y

5(2) + 4y = 22

4y = 12

y = 3


Related Questions

(x+4)−(x−1)
HELPPPP
5edrfytguyhidiftougyih;fygvjbmncifyykgvjb mnr6o7ftuglh.bjnhugiyfltudkrysi6d7tfugiy;h/junk;lk

Answers

Answer:

There is no plug-in for x.

X=0.

(0+4) - (0-1) = [(4 - (-1)] = 5.

Answer:

5

Step-by-step explanation:

(x+4) -x +1

x - x = 0

5

Which number best represents the location of point A on the number line shown?

A) -7.5

B) 7 3/10

C) 7 3/8

D) 7 3/7

Answers

Answer:

7 3/10

pls mark!!!!!!!!!!!!!!

Laura jogs at a rate of 2 miles every hour.
What is her unit rate?
A. 0.4 mi/hr
B. 2 mi/hr
C. 5 mi/hr
D. 10 mi/hr

Answers

Answer:

b

Step-by-step explanation:

2 miles per hour. She jog 2 MILES each HOUR.

i’ll give 17 points for this!

Answers

Answer:

90

Step-by-step explanation:

Answer:

90

Step-by-step explanation:

The reason why it is 90 because it looks like it is going in order so it would be 55 , 90 , 92 , 114

Hope i was to explain this real good Hope this is rightBrainliest plz

can you help me????????????

Answers

Answer:

120

Step-by-step explanation:

This shape is made out of two figures, a rectangle with sides 20 and 3.5 and a parallelogram with height 2.5 and base 20. 2.5*20+20*3.5=50+70=120 cubic centimetres. Hope this helps!

I think the answer is 120

The length of two sides of a right triangle are leg 12 M and hypotenuse 15 M find find the length of the third side

Answers

Answer:

9 M

Step-by-step explanation:

a^2+b^2=c^2

12^2+b^2=15^2

144+b^2=225

-144         -144

b^2=81

b=sqrt of 81

b=9

Math question down below

Answers

Answer:

p < 1500

Step-by-step explanation:

Answer:p is more than or equal to (> with line under) 1500.

Step-by-step explanation:

A square pyramid has a base side length of 20.4cm and a height of 18.2cm which square pyramid is similar

Answers

Answer:

C) base side length = 30.6 cm, height = 27.3 cm

Step-by-step explanation:

Answer:

c on ed

Step-by-step explanation:

Drag each label to the correct location on the table. Each label can be used more than once, but not all labels will be used.
Complete the table by classifying the polynomials by degree and number of terms.
linear
monomial
exponential
trinomial
quadratic
binomial
constant

Answers

Answer:

Step-by-step explanation:

is a monomial (since it is all connected by multiplication) and since it is in the degree of 2, that makes it a quadratic. 

-2 is a constant (since it doesn't have variables) and it is a monomial (since it is all connected by multiplication)

3x-9 is a binomial (since it has two terms, not connected by multiplication) and since it has x in the power of 1, that makes it a linear equation.

Finally,  -6x + 9 is a trinomial (since it has 3 terms connected by either addition or subtraction) and since the degree of the polynomial is 2, that makes it a quadratic.

HELP QUICK!! 25 POINTS AND BRAINLIEST!!! In circle V, r = 18 in.
What is the area of circle V?

a. 64
b. 36
c. 72
d. 324

Answers

Answer: D

Step-by-step explanation:
Given:
Circle V has radius = 14 ft
We need to find area in terms of
Area of circle =
where represents radius of the circle.
Thus area of circle V will be =

Move the numbers to the lines. Put the numbers in order from least to greatest.
6.82
6.803
6.650
6.68
Need fast please help

Answers

Answer:

6.650, 6.68, 6.803, 6.82

Step-by-step explanation:

I need help with this please!!

Answers

Answer:

5

Step-by-step explanation:

The hypotenuse is the longest side of the triangle.

Answer:

5

Step-by-step explanation:

The hypotenuse is generally the longest side of a right triangle.

What’s the additive inverse of -10 1/4

Answers

Answer:

3/7 -1/4

Step-by-step explanation:

Answer:

3/7 -1/4

Step-by-step explanation:

Please Help!!!!!!!!! Extra points and branliest will be given!!!

Answers

Answer: The answer is 12 units

Step-by-step explanation: just finished the unit

Answer:

so it is C

Step-by-step explanation:

a=4

b=5

c=√(4²+5²)=√(16+25)=√41

4+5+√41≈15

Bob wants to frame a picture. He needs to know how long to cut
the length and width of the wood for the frame. The length of the
picture is six inches more than the width. If the perimeter of the
picture is 108 inches, what are the length and the width of the
picture?

Answers

Answer:

Length = 30 inches

Width = 24 inches

Step-by-step explanation:

Hi, to answer this question we have to apply the next formula:

Perimeter of a rectangle (P) = 2 width + 2 length

Since:

Length (L) = width (w) + 6

Replacing with the values given:

108 = 2w+2 (w+6)

Solving for w:

108 = 2w+2w+12

108-12 =2w+2w

96 =4w

96/4 =w

w= 24 in

Replacing w in the length formula:

L = w+6

L= 24+6 = 30in

Feel free to ask for more if needed or if you did not understand something.  

Find the volume of the composite figure.

Need done in a hour please help fast. Thanks!!

Answers

Answer:

Im pretty sure its 24 or 9

Step-by-step explanation:

A map is drawn with a scale of inch equal to 5 actual miles.
If the map distance between two cities is 8 inches, what is the real distance between these cities in miles?

Answers

Answer:

Tbh idk but i recommend u to get a tutor

MARKING BRAINLIEST
a bag contains 5 red marbles 6 green marbles and 3 blue marbles .If cindy draws a marble keeps it and then draws another marble,what is the probability that both marbles she draws will be red *FRACTIONS IN ANSWER CHOICES*

a. 10/91
b. 25/196
c.1/3
d. 5/7

Answers

Answer:

A

Step-by-step explanation:

5/4*4/13=20/182=10/91   you take the red marble out so you -1 from the red and the total bag of marbles then you multiply them to gather to get the combined average  then simplify

Answer: 10/91

Step-by-step explanation:

3(q+ 4/3)=2 solve for q

Answers

Answer:

-2/3

Step-by-step explanation:

multiply by 3

= 3q+4=2

subtract the 4

= 3q=-2

q= -2/3

Answer:

-2/3

Step-by-step explanation:

PLEASE HELP - Select the TWO sets of points that CANNOT belong to a linear function.

Answers

We see for each row the x coordinates are in arithmetic progression, with a constant difference between successive points.  For example in A x coordinates 3-5=1-3.   So for this to be a line, the same has to be true of the y coordinates; they have to be in arithmetic progression.

A.  5/2, 3/2, 1/2 is just 5,3,1 (constant factors don't matter) so those are in arithmetic progression like the x coordinates so we have a line.

B. 1/2, 1, 3/2.  In AP, a line

C. -1/2, -1/3, -1/4 multiplying by common denominator -12 makes 6, 4, 3.  Those aren't in arithmetic progression.  Not a line.

D. 2,3,4 in AP, a line.

E. 3/4,  1 3/4,  2 3/4  mixed numbers but obvious AP.

Answer: C

help!

what was the most important reason why ancient leaders conquered??

{answer fully}

Answers

Full Answer:

They did this in order to gain a chance to win Riches. The spoils of war are known as a meaningful motivation for conquest. When Genghis Khan led the Mongols into a struggle with the 1200s, a lot of his squaddies had been motivated by the possibility to win riches.

Mark as brainliest please, I need a few more :D

rewrite the equation of the circle (x-2)^2+y^2=3 in general form

Answers

Step-by-step explanation:

x²+4-4x+y²=3

x²+y²-4x+1=0

Answer:

?? Bro write the question better

Step-by-step explanation:

Bo recorded a basketball game that lasted 2 1/2 hours.Bo watched the game four times last week how many hours did Bo spend watching the game?

A. 2/10
B. 10/2
C. 20/2
D. 2/20​

Answers

Answer:

b

Step-by-step explanation:

Any help is appreciated

Answers

Answer:

y=-1/3x+1 Is this what you are asking for

Step-by-step explanation:

We have two points
(3,0) and (0,1)

Now, find the slope !
m = (y2-y1) / (x2-x1)
:. m = (1-0) / (0-3)
m = - 1/3


According to the equation
y = mx + b

Substitute one of points with x and y, ex (3,0)
0 = -1/3 x 3 + b
:. b = 1

So, the equation will be :
y = -1/3X + 1

Since the points located at below !
So, the inequality will be less than or equal

y ≤ -1/3X + 1

What is the surface area of the square pyramid represented by the net below?

Answers

Answer:

64 cm^2

Step-by-step explanation:

Square: 4*4 = 16

Triangles: 4((4*6)/2))

       = 4(24/2)

       = 4(12)

       = 48

Add the square and triangles together

       = 16 + 48

       = 64

The total will be 64 cm^2

Answer: 64 cm2

Step-by-step explanation:

I need help ples.
What is the volume of composite solid?

Answers

Answer:

58 13/32 ft. cubed

Step-by-step explanation:

Horizontal Shape: 6 x 5/2 x 7/4 = 26 1/4 ft.

Vertical Shape: 7/2 x 21/4 x 7/4 = 32 5/32 ft.

Total Volume: 26 1/4 + 32 5/32 = 58 13/32 ft. cubed

If this helped can I get brainliest :)

Geographers use negative numbers to represent points
below sea level and positive numbers to represent points
above sea level.
How would geographers represent a point 7 1/4 meters
above sea level?

Answers

Answer:

they do 7.25 meters (positivly) also... can u pls mark brainliest?

An amusement park has 18 attractions, including 8 arcades.
What is the probability that a randomly selected attraction at this amusement park will be an arcade

Answers

Answer:

8/18

Step-by-step explanation:

8 out of 18 attractions at the park are arcades, as stated.

hope this helps!

BRAINLIEST!!!! PLZ HELP..
18. Identify the asymptotes of each function.

Answers

Answer:

x = 4, f(x) = 0

Step-by-step explanation:

Given

f(x) = [tex]\frac{1}{x-4}[/tex]

The denominator of f(x) cannot be zero as this would make f(x) undefined. Equating the denominator to zero and solving gives the value that x cannot be and if the numerator is non zero for this value then it is a vertical asymptote.

x - 4 = 0 ⇒ x = 4 ← is the vertical asymptote of f(x)

Since the degree of the denominator > degree of denominator

There is a horizontal asymptote at y = 0 , that is f(x) = 0

Given these what is X if B-X=A

Answers

Answer:

B

Step-by-step explanation:

B-X=A

or

B-A=X

or

X=B-A

[tex]X=\left[\begin{array}{ccc}-5&-1&6\\4&1&2\\0&-3&2\end{array}\right] -\left[\begin{array}{ccc}-1&-2&3\\4&8&-6\\0&1&5\end{array}\right] \\=\left[\begin{array}{ccc}-5+1&-1+2&6-3\\4-4&1-8&2+6\\0-0&-3-1&2-5\end{array}\right] \\=\left[\begin{array}{ccc}-4&1&3\\0&-7&8\\0&-4&-3\end{array}\right][/tex]

Answer:

answer is B

Step-by-step explanation:

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