HELP PLEASE





What are the steps in solving this system? (write them in WORDS and solve.)

5x - 2y = 4
10x - 2y = 14

Answers

Answer 1
5x - 2y = 4 (1)
10x - 2y = 14 (2)

divide (1) to (2),
-5x = -10
x = 2

Then, to find the y you can substitute the x = 2 to (1),
5(2) - 2y = 4
10 - 2y = 4
- 2y = 4 - 10
- 2y = - 6
y = 3

So, the x = 2 and y = 3


Related Questions

A triangle has one side of length 4 and another of length 9. Which of the following are possible lengths of the third side?

Please help me


Answers

5 I believe because 4up and 9 as your base so you would need to do 9-4=5

Please help ASAP!!!!

Answers

Answer:

130°

Step-by-step explanation:

∠JDG and ∠EDF are opposite angles. The measures of arcs for opposite angles always add up to 180°. Since the arc for ∠JDG is 50°, the arc for ∠EDF has to be 130°, because 50 + 130 = 180.

How do you write 927,000 in scientific form

Answers

the answer is 9.27 x 10^5

please help!! ______

Answers

Answer:

A) AA similarity

Step-by-step explanation:

AA stands for "angle, angle" and means that the triangles have two of their angles equal.

SAS stands for "side, angle, side" and means that we have two triangles where the ratio between two sides is the same as the ratio between another two sides  and we we also know the included angles are equal.

SSS stands for "side, side, side" and means that we have two triangles with all three pairs of corresponding sides in the same ratio.

Here we can easily see that two angles are equal

∠CYK and ∠KZP∠CKY and ∠PKZ (they're cross angles)

Therefore it's AA similarity

what's 200 - 400 fast...​

Answers

Answer:

-200

Step-by-step explanation:

Answer:

-200

Step-by-step explanation:

200 - 400 = -200

(8x + 9) + (–6x – 1)

Answers

Answer:

5

Step-by-step explanation:

Simplifying

(8x + 9) + -1(6x + -1) = 0

Reorder the terms:

(9 + 8x) + -1(6x + -1) = 0

Remove parenthesis around (9 + 8x)

9 + 8x + -1(6x + -1) = 0

Reorder the terms:

9 + 8x + -1(-1 + 6x) = 0

9 + 8x + (-1 * -1 + 6x * -1) = 0

9 + 8x + (1 + -6x) = 0

Reorder the terms:

9 + 1 + 8x + -6x = 0

Combine like terms: 9 + 1 = 10

10 + 8x + -6x = 0

Combine like terms: 8x + -6x = 2x

10 + 2x = 0

Solving

10 + 2x = 0

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-10' to each side of the equation.

10 + -10 + 2x = 0 + -10

Combine like terms: 10 + -10 = 0

0 + 2x = 0 + -10

2x = 0 + -10

Combine like terms: 0 + -10 = -10

2x = -10

Divide each side by '2'.

x = -5

Simplifying

x = -5

made by TheRealMarinette

The inverse, f'(x), of f(x) =
X + 5
Х
can be written as
5
x-1
a) Find f(2)
b) Find f'(2)

Answers

Step-by-step explanation:

Given

[tex]f(x) = \frac{x + 5}{x} [/tex]

So

[tex]f(2) = \frac{2 + 5}{2} \\ = \frac{7}{2} [/tex]

Now

[tex] {f}^{ - 1} (x) = \frac{5}{x - 1} [/tex]

So

[tex] {f}^{ - 1} (2) = \frac{5}{2 - 1} \\ = \frac{5}{ 1} \\ = 5[/tex]

Hope it will help :)❤

r + 4s = -8
3r + 2s = 6

Answers

Answer:

R = 4

s = -3

Step-by-step explanation:

r + 4s = -8

3r + 2s = 6

there are several ways to solve this system but i chose the elimination method and multiplied the second equation by -2 to get:

  -6r - 4s = -12 and added it to the first equation

+ 1r + 4s =  -8

 -5r = -20

   r = 4

plug in to find 's':  4 + 4s = -8

                              4s = -12

                               s = -3

3sin60°+xcos30°.tan45°=xcot30°

Answers

Answer:

x = (6[tex]\sqrt{2}[/tex])/(4[tex]\sqrt{2}[/tex] -3)

Step-by-step explanation:

sin60 degree = [tex]\sqrt{3}[/tex] /2

cos30 degree = 1/2

tan 45 degree =  sin45 degree / cos45 degree = ([tex]\sqrt{2}[/tex]/2)/([tex]\sqrt{2}[/tex] /2) = 1

cot 30 degree = cos30 / sin30 = ([tex]\sqrt{3}[/tex] /2)/(1/2)  = [tex]\sqrt{3}[/tex]

so, let us plug the above values in the given eqution and solve for x

3([tex]\sqrt{3}[/tex] /2 ) + x(1/2) *1 = x([tex]\sqrt{3}[/tex])

3([tex]\sqrt{3}[/tex] /2 )  = x([tex]\sqrt{3}[/tex]) -x(1/2)

3([tex]\sqrt{3}[/tex] /2 )  = x(([tex]\sqrt{3}[/tex])-(1/2)) (by taking x as a common factor)

3([tex]\sqrt{3}[/tex] /2 ) = x(((2[tex]\sqrt{3}[/tex])-(1))/2))    (making the same common denominator

now devide both sides by (((2[tex]\sqrt{3}[/tex])-(1))/2))

x  = 3([tex]\sqrt{3}[/tex] /2 )  / (((2[tex]\sqrt{3}[/tex])-(1))/2))

x = 3([tex]\sqrt{3}[/tex] ) / ((2[tex]\sqrt{3}[/tex])-(1))

!!!PLEASE HELP WILL GIVE BRAINLIEST EASY!!!
17 squared is between which of the following pairs
a. 4 and 5
b.16 and 18
c.288 and 290
d. i dont know
and d is actually a answer i dont know why

Answers

NUMBER: 17        SQUARE: 289        SQUARE ROOT: 4.123

Hope this helps a little.

Answer:

a. 4 and 5

Step-by-step explanation:

We are given 17 squared, and are asked on whether which of it is between the following pairs.

Squaring a number always gives it a smaller number since you are trying to find a number times itself to make the number in the square root.

Therefore by this knowledge, a. would be the most reasonable answer, since 17 is quite a small number, squaring it will equal something smaller.

Is 2/5 and 8/20 equivalent

Answers

yes!
explanation:
8 divided by 4 equals 2 and 20 divided by 4 is 5

Answer:

Yes, they are.

Step-by-step explanation:

Which polygon appears to be regular?


Figure A

Figure B

Figure C

Figure D

Answers

Answer:

Figure B

Have a good day

If 9 garden hoses cost $196.83 and the price of each hose is the same how much does each hose cost?

Answers

Answer:21.87

Step-by-step explanation:

196.83 divided by 9

Answer:

They each cost $21.87

Step-by-step explanation:

If each hose costs the same you can just divide the total (196.83) by the number of hoses (9) to get 21.87.

Can someone please answer this please

Answers

D) (3,3)
E) (-5,0)
F) (-2,2)

Multiply. (x-6)(x+4) with work.

Answers

X x X+4X-6X-6x4
X2+4x-6X-24
X2-2X-24

Answer:

(x+-6)(x+4)

(x)(x)+(x)(4)+(-6)(x)+(-6)(4)

x^2+4x-6x-24

Answer is x^2-2x-24

Step-by-step explanation:

8) determine the value again pls

Answers

Answer:

4

Step-by-step explanation:

-48/2 ÷ (-6)

-24 ÷ (-6)

4

In a lilac paint mixture, 40$ of the mixture is white paint, 205 is blue, and the rest is red. There are 4 cups of blue paint used in a batch of lilac paint. If you get stuck, consider using a tape diagram.

Answers

Answer:

White paint is 8

Blue paint is 4

Red paint is 12

The recipe will yield 24 cups of lilac paint if you are talking about the problem i had earlier on my math homework

Twelve pounds of beans are distributed equally into 9 bags to give out at the food bank.

How many pounds of beans are in each bag?

Enter your answer in the simplest form.

There are pounds of beans in each bag.

Answers

Answer:

1.33 or 1 1/3 pounds

Step-by-step explanation:

12 ÷ 9 = 1.33

15. Asriel thinks he has room for a 50 inch TV in his living room. It turns out
he only has room for a 40 inch TV. What is his percent error? *

10%
25%
20%
30%

Answers

Answer: 10%

Step-by-step explanation: because if you subtract 50-40 you get 10 and then you just add the % sign and you can cross out d and b.

hope this helps you

Answer:

20%

Step-by-step explanation:

Since, 40/50 is equal to 80/100 we can tell that the 2 are 80% close to eachother, but there is 20% difference!

Hope this Helps! :)

Have any questions? Ask below in the comments and I will try my best to answer.

-SGO

JoAnn paid $3.80 for each book at a book sale.
How much did she spend if she bought 9 books?

Answers

Answer:

$34.20

Step-by-step explanation:

total spent =3.80*9=$34.20

calculate the value of b + 12.5=12

Answers

Answer:

[tex]\large\boxed{b = -0.5}[/tex]

Step-by-step explanation:

Hope this helps, have a great day

Answer:

Move all terms not containing  b  to the right side of the equation.

b = − 0.5

Step-by-step explanation:

The area of a square tile is 1.56 square feet. What is the area of a floor covered with 103 tiles?

Answers

1.56 x 103 = 160.68

The area of is 160.68

Answer:

168/169

Step-by-step explanation:

169 if you round 168.68 to 169

Stacy reasons that since dilations change lengths they also change angles by the same factor. Is she correct? If not, explain why, I will list brainlist if you reply fast

Answers

Answer:

Stacy is incorrect. Dilations do not affect the angles of a given figure since dilations create parallel lines and the angles on parallel lines are congruent.  

Step-by-step explanation:

just took the quiz :)

can someone help me with finding the slope of the graph- ONLY GRAPH

Answers

Answer:

m = - 2

Step-by-step explanation:

( [tex]x_{1}[/tex] , [tex]y_{1}[/tex] )

( [tex]x_{2}[/tex] , [tex]y_{2}[/tex] )

m = [tex]\frac{y_{2} -y_{1} }{x_{2} -x_{1} }[/tex]

Mona has a bag containing 4 red marbles, 12 greens marbles, and 8 black marbles. Without looking, she pulls out one marble from the bag
and does not replace it. She then pulls a second marble from the bag. What is the probability that she will pull a red on the first pick and
red on the 2nd pick?

Answers

Answer:

1 / 46

Step-by-step explanation:

P(R, R) = [tex]\frac{4}{24}[/tex] · [tex]\frac{3}{23}[/tex] = [tex]\frac{1}{46}[/tex] (simplified form)


Which right triangle's unknown leg measure is 43 units? Assume the given length are in the same unit of measure.
60
12
\/44
8
5
90
|/21
19
) Intro
Done

Answers

Answer: the fourth triangle

Step-by-step explanation:

I got it right :)

Answer:

The 4th triangle

Step-by-step explanation:

I need help with math if you don't know the answer get out of the question and don't answer it and give the wrong answer or some link or even say "I don't know" or anything like that it's not fair to me cause it a waste of my points I will report your if you do that :) have a nice day and stay safe

Answers

Answer:

the answer is 5 3/8

Step-by-step explanation:

the common denoiminator of 4 and 8 is 8 so you multiply 3 by 2 like you did 4 to get 8 and you multiply 5 by 1 like you did 5 to get 5 and you add it all together

What is the value of 6x90.6

Answers

Answer:

543.6

Step-by-step explanation:

answer is 543.6 :)

WILL GIVE BRAINIEST!!!!!

Answers

Answer:

x=2

Step-by-step explanation:

3. The point P(3,5) is rotated 90° clockwise
about the origin. What are the coordinates of
P'?
A. P'(-3,-5)
B. P’(5,-3)
C. P'(-5,3)
D. P'(5, 3)

Please :)

Answers

Answer:

New coordinates of  P' are:  P'(5, -3)

Hence, option B i.e. P'(5,-3) is correct.

Step-by-step explanation:

When a point A(x, y) is rotated 90° clockwise around the origin, we flip x and y and reverse the sign of x.  

Thus,  

The rule to rotate a point A(x, y) after a rotation 90° counterclockwise around the origin is:  

A(x, y) → A'(y, -x)

In our case, the point P(3, 5) is rotated 90° clockwise about the origin. Thus, the coordinates of  P' will be:

A(x, y) → A'(y, -x)

P(3, 5) → P'(5, -3)

Therefore, coordinates of P' are:  P'(5, -3)

Hence, option B i.e. P'(5,-3) is correct.

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