Mathematics High School

Solve the following problems using Elimination.

NO LINKS PLS-

8x - 5y =-18
2x + 5y = 58

Answers

Answer 1

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Answer:

  (x, y) = (4, 10)

Step-by-step explanation:

The coefficients of y are opposites, so the y-terms can be eliminated by adding the equations.

  (8x -5y) +(2x +5y) = (-18) +(58)

  10x = 40 . . . . . . simplify

  x = 4 . . . . . . . . . divide by 10

Substituting this into the second equation gives ...

  2(4) +5y = 58

  5y = 50 . . . . . . . . subtract 8

  y = 10 . . . . . . . . . .divide by 5

The solution is (x, y) = (4, 10).

Solve The Following Problems Using Elimination. NO LINKS PLS-8x - 5y =-182x + 5y = 58

Related Questions

Find the smallest side of CDE?

Answers

Answer:

CE

Step-by-step explanation:

The smallest side is opposite the smallest angle.

The smallest side is CE

A circular pool has a
circumference of 65.94 ft.
What is the pools diameter?

Answers

Answer: 20.989353895 or round it up to 21

Step-by-step explanation:

If we want to find a diameter of a circle and given a circumference, we divide the circumference by pi

so 65.94 divide by pi = 20.989353895

The graph represents the length and
I height of a wheelchair ramp. Find the
slope of the ramp.

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Answer: 1/4

Step-by-step explanation: Take point (1,1) put the rise (2) over the run (8) and then simplify.

Are the two triangles similar to one another? *
1 point

Answers

Answer:

yes

Step-by-step explanation:

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Answers

Area of square is base times height my skills in math can only help you with this sorry

Find the approximate length of the line AB PLZZZZZZZZZZZZZZZZZZ HELPPPPPP

Answers

Answer:

Approximate length of line AB is 8.6

Step-by-step explanation:

Input Data :

Point 1 (xA, yA) = (8, 2)

Point 2 (xB, yB) = (3, 9)

Objective :

Find the distance between two given points on a line?

Formula :

Distance between two points = √(xB − xA) ^2 + (yB − yA)^2

Solution :

Distance between two points = √(3 − 8) ^2 + (9 − 2) ^2

= √(−5) ^2 + 7^2

= √25 + 49

= √74

= 8.6023

Distance between points (8, 2) and (3, 9) is 8.6023

hope this helps and is right :)

Answer:

First choice

12.0

Step-by-step explanation:

Make a right triangle, drawing straight lines, down from point A and left from point B. Use the pythagorean theorum to solve.

I will use "x," "y," and "z" as sides of the triangle as to not confuse between points a and b.

Line AB is line z

x^2 + y^2 = z^2

8^2 + 9^2 = z^2

64 + 81 = z^2

145 = z^2

(find square roots of both)

12.0416 = z

I need help plzzzzzzzzzzzzjdbfhrrhebehdbzzzzzzzzzzzzzzzz

Answers

Answer:A

Step-by-step explanation: im not too sure but i think 1-2/5=3/5 which would be red so

Answer:

The answer to this is a because it has a sequence of three

Express the area of the entire rectangle. Your answer should be a polynomial in standard form, (x+4) (x+5)
Area=​

Answers

Answer:

[tex]x^{2}[/tex] + 5x + 20

Step-by-step explanation:

(x+4) (x+5)

Expand

x^2 + 5x + 4x + 20

Simplify

[tex]x^{2}[/tex] + 5x + 20

Hope that helps!

I’ll give brainlist to whoever answer correct. Do not give any links or answer for points

Answers

Answer:

length L = [tex]\sqrt[2]{18}[/tex] or [tex]3\sqrt{2}[/tex]

slope = 45 degree

neither

Step-by-step explanation:

A river has a normal depth of 10 feet. After a rain storm, the river is rising a 1.5 feet per hour. What is the river's depth after 4 hours?

Answers

Answer:

The answer is 16 feet

Step-by-step explanation:

You do 1.5 feet times 4 hours and you get 6 feet and than you add 10 and 6 and you get 16 feet after 4 hour.

Find the area of a triangle​

Answers

Answer:

B.17.5cm²

Step-by-step explanation:

S=a+b+c/2=

5+8+7/2=10

S=10

Area of the triangle=[tex]\sqrt{3(5-a)(5-b)(5-c)}[/tex]

⇒[tex]\sqrt{10(10-5)(10-8)(10-7)}[/tex]

⇒[tex]\sqrt{10*5*2*3}[/tex]

⇒[tex]\sqrt{300}[/tex]

⇒17.5cm²

hope it helps...

have a great day!!

the questions are in the pictures


REAL ANSWERS ONLY PLEASE :) thank you

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the Anser un the Fire one is B and the answer on the 2nd one is A

Sandy invest $35,000 into a business. If she on 16% of the business, what is the total work for business?

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5600 I think although I don’t understand completely what the question is aski by

Could someone help? I got my answer, but I want to check if I’m right.

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Hope it helps you........

Please help. Thank you

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Answer:

A

Step-by-step explanation:

look where the plot is Set 1 is at 8 and Set 2 is at 10. obviously 10 is greater than 8

Holaaa alguien me puede ayudar
¿Cuál es el valor de “x e “y” en la ecuación?
Es por el sistema de Reduccion

Answers

Answer:

x=10-y

Step-by-step explanation:

The cookie-stacking competition is a tradition at Westhaven's annual summer festival, and Bert is helping to set it up this year. The first contestant who creates a single stack using all of their cookies wins a prize! After Bert split all the cookies he had evenly among 4 contestants, each contestant got 24 cookies.

Answers

Answer:

is this the full question?

Step-by-step explanation:

% of $10 = $3


help pls ​

Answers

Answer:

30%

Step-by-step explanation:

3/10=30/100 and 30/100 is the same as 30%

because %'s mean out of 100 so 30% means 30 out of 100 which can be simplified to 3 out of 10 or 3/10 (so its all equal)

Answer:

3%

Step-by-step explanation:

HELP ME PLEASE I'll give brainless.

Answers

∠IJG = ∠FGE (they are corresponding angle)

So, ∠FGE = 50°

Answer:

∠FGE is also 50°

Step-by-step explanation:

they are corresponding angles.

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Answers

Answer:

Julie

Step-by-step explanation:

A 110 minute movie is 1 hour and 50 minutes so julie's two hour long book is longer

Answer:

2 hours= 120 minutes

120>110 Therefore Julie had longer activity

Step-by-step explanation:

Find the value of x by finishing solving the system shown below.

Answers

Answer:

x = 10

Step-by-step explanation:

Since both equations give y in terms of x, equate the right sides

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5x - 28 = 22 ( add 28 to both sides )

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x = 10

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Answers

Answer: [(3/4)π] in² or (0.75π) in²

Step-by-step explanation:

Here, we are asked to find the area of a sector. So we are going to use the formula: A=πr²(θ/360)

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

Given

r=3 in

θ=30°

Solve

A=πr²(θ/360)

A=π(3)²(30/360)

A=9π(1/12)

A=[(3/4)π] in²

A=(0.75π) in²

Hope this helps!! :)

Please let me know if you have any questions

how do you solve something like this?

Answers

Answer:

to find the value of x have to know that they would all add up to 180 degrees. so subtract 98 from 180. then you would have to find the angel of the part on the left.

Step-by-step explanation:

Answer:

X = 41

Step-by-step explanation:

this triangle is isosceles triangle, so

X + X + 98 = 180 ( being triangle)

2X + 98 = 180

2X = 82

therefore : X = 41

You answer 82% of the questions correctly on a 50-question test. How many questions do you answer incorrectly

Answers

So if each question you miss would drop the percent by 2% then you would missed 9 questions
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Answer:

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Step-by-step explanation:

(you might want to ask your teacher though because its kind of misleading)

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Answers

Answer: x=120°

Step-by-step explanation:

What you are looking for is the value of the exterior angle of the regular polygon.

For a n-sided regular polygon, the external angle is given by the formula 360°/n.

Because the shape in this example is a regular triangle, the value of n is 3.

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=360°/3

=120°

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Answers

Answer:

A

Step-by-step explanation:

Yoy get A by combining like terms.

please look at picture. i will give brainliest to the correct answer!!!

Answers

Answer:

N = 30

Step-by-step explanation:

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please help if you can!!!!
I promise I will make brainliest!!!!​

Answers

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Answers

Answer:

25.13 m/s

Step-by-step explanation:

Linear velocity = Distance / time

The distance = Circumference of turbine = 2πr

Radius, r = 40 m

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The linear velocity is thus :

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= 251.327m / 10s

= 25.13 m/s

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