A variable needs to be eliminated to solve the system of equations below. Choose the correct first step.
-9x-8y= 41
-9x-2y=71

A Variable Needs To Be Eliminated To Solve The System Of Equations Below. Choose The Correct First Step.

Answers

Answer 1

Answer:

I think it is add to eliminate x

Answer 2

Answer:

Step-by-step explanation:

A Variable Needs To Be Eliminated To Solve The System Of Equations Below. Choose The Correct First Step.

Related Questions

Mark think of a number mark doubles it and add 2.9 to get answer of 30.6 form an equation with x from the information

Answers

Answer:

2x + 2.9 = 30.6

Step-by-step explanation:

We are to represent the unknown number that Mark thinks of with x

If Mark doubles this unknown number, he multiplies it by 2 and the unknown number becomes - 2x

He then adds 2.9

The equation becomes 2x + 2.9

The answer of the above equation is 30.6

This gives : 2x + 2.9 = 30.6

The first step to use to solve for the missing side?

Answers

Answer:

9√2.

Step-by-step explanation:

Distance of the diagonal

= √(9^2 + 9^2 )   (Using Pythagoras Theorem)

= √(162)

= 9√2

Use Elimination to solve the system below, find X!!!

3x + 3y = 15

2x + 3y = 13




x = 3
x = 3

x = 2
x = 2

x = 87
x = 87

x = 1

Answers

Answer:i think the answer is 15 and 16

Step-by-step explanation:

just use a calculator

Please help me this is my final!!!

Answers

Answer:

105

Step-by-step explanation:

900 degrees in a heptagon

Help me with this please

Answers

Answer:

you didn't attach a question to answer

Step-by-step explanation:

Write an
explicit formula for
an,
the nth
term of the sequence 39, 41, 43, ....

Answers

Answer:

2n + 37.

Step-by-step explanation:

an = a1 + d(n - 1)

Here a1 = 39 and d = 2

an = 39 + 2(n - 1)

= 39 + 2n - 2

= 2n + 37.

Help! Find the domain of the graph

Answers

Answer:

[-8,4]

Step-by-step explanation:

you look at the x-axis. The end points of the graph are -8 and 4, thus the domain would be [-8,4] as it is always written in left to right or bottom to top value.

hope it helps.

E
А
B.
G
22°
(5x - 30°
С
H
D
F
Find mZCHF when mZBGE = 120°.
m_CHF =

Answers

Answer:

Step-by-step explanation:

m∠CHF = m∠BGE         {Alternate exterior angles}

m∠CHF = 120

Priscilla can make 2 bracelets in 16 minutes. At this rate, how many bracelets can she make in 64 minutes?

Answers

Answer:

8 bracelets.

Step-by-step explanation:

First, find out how long it'll take Priscilla to make on bracelet. It is given that she can make 2 bracelets in 16 minutes. Divide 16 with 2:

16/2 =8

Priscilla takes 8 minutes to make 1 bracelet. Divide 64 with 8 to find the amount of bracelets Priscila can make:

64/8 = 8

8 bracelets is your answer.

~

Given: Priscilla makes 2 bracelets in 16 minutes

To Attain: How many Bracelets she will make in 64 minutes?

⠀⠀⠀⠀⠀⠀__________________

Solution:

Firstly, We will divide the 16min with 2 to find the that how many time taken to make 1 bracelets. then we will multiply the rate with 64min to find how many bracelets she will make! Let's do it•

⠀⠀

[tex]:\implies\sf\dfrac{\cancel{16}^{8}}{\cancel{2_1}}[/tex]

⠀⠀

It will take 8 minutes to make one Bracelets.

⠀⠀

So, Let's find out that how many bracelets she will make in 64 minutes

⠀⠀

[tex]:\implies\sf\dfrac{\cancel{64}^{8}}{\cancel{8_1}}[/tex]

⠀⠀

[tex]\therefore \underline {\sf{Hence , \:She \: will \: make \: \pmb{8 \: bracelets }\: in \: 64 \: minutes. }}[/tex]

think about the ratio of circles and stars . Of the 8 circles,how many stars would there be?

Answers

Answer:

12

Step-by-step explanation:

There are 4 circles, 6 stars. The ratio is 4/6 = 2/3

if there is 8 circles in order to get the same ratio 8/x = 2/3 => x = 12

What does m equal?please help me.

Answers

Answer:

id.k hunnybut than you

Step-by-step explanation:

Free Cookie or brainliest

Answers

Answer: point C

Step-by-step explanation: the square root of 68 is 8.246and it keeps going with other digits

Answer:

C. Point C,

Step-by-step explanation:

The squre root of 68 is 8.24 and most likely to be 8 so letter C.

Thank you!!

A bookmark has an area of 21 square centimeters. Its perimeter is 20 centimeters. What are the dimensions of the bookmark?

Answers

Answer: The dimensions are 7cm and 3cm.

Step-by-step explanation:

The following equation can be deduced from the question

L × W = 21 ....... i

2L + 2W = 20 .......... ii

Divide equation ii through by 2

(2L + 2W = 20) / 2

L + W = 10 ....... iii

From equation iii

L = 10 - W ......... iv

Put equation iv into I

L × W = 21

(10 - W) × W = 21

10W - W² = 21

W² - 10W + 21 = 0

W² - 7W - 3W + 21 = 0

W(W - 7) - 3(W - 7) = 0

W - 3 = 0

W = 0+3

W = 3 centimeter

Since,

Length × Width = 21

Length = 21/3

Length = 7 centimeters

The dimensions are 7cm and 3cm.

help please i'll give you 20 points!!

Answers

Answer:

8

Step-by-step explanation:

I'm not completely sure but I hope it helps

Answer:

28 is answer

Step-by-step explanation:

14×2= 24

Hope it helpedddddddddd

help me please :( I'm in 7th grade but I'm only adding this text bc it won't let me ask the question without it lol​

Answers

Answer:

C

Step-by-step explanation:

Pls answer and I will mark brainliest!

Answers

Answer:

C. 244°

Step-by-step explanation:

Angle formed by two tangents is equal to half of the difference of intercepted arcs:

m∠C = 1/2(arcAXB - arcAB)64° = 1/2(mAXB - mAB)mAXB - mAB = 128°

The sum of the same two arcs is a full circle:

mAXB + mAB = 360°

Add the two equations together:

2mAXB = 360° + 128°2mAXB = 488°mAXB = 244°

Correct choice is C

Please help I am so stuck

Answers

first third and last answer

The equation A = 1800(1.043)s is being used to calculate the amount of money in a savings account.
What does 1.043 represent in this equation?
A. 0.043% decay
B. 0.043% growth
C. 4.3% decay
D. 4.3% growth

Answers

Answer: D

Step-by-step explanation:

PLEASEE HELPPP
find the solution to the system of equations

Answers

The answer is
X: 1
Y:3

cellus
Light of wavelength 535 nm passes
through a single slit of width
2.00 x 10-5 m. What is the angle
between the first (m = 1) and third
(m = 3) interference minima?
[?]

Answers

Answer:

3.06

Step-by-step explanation:

I got it right on acellus

Write the Quadratic Formula for the quadratic equation.

Answers

Answer:

[tex]x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}[/tex]

Step-by-step explanation:

Hello!

Let's start with the given equation and work our way towards x.

Solve for x[tex]ax^2 + bx + c = 0[/tex]

Divide both sides by a

[tex]a(x^2 + \frac bax + \frac ca) = 0[/tex]        [tex]x^2 + \frac bax + \frac ca = 0[/tex]

Move c/a to the other side

[tex]x^2 + \frac bax = -\frac ca[/tex]

At the step, we have to use the Completing the Square method.

[tex]x^2 + \frac bax + (\frac{b}{2a})^2 = -\frac ca + (\frac b{2a})^2[/tex][tex]x^2 + \frac bax + \frac{b^2}{4a^2} = -\frac ca + \frac {b^2}{4a^2}[/tex][tex](x + \frac b{2a})^2= -\frac ca + \frac{b^2}{4a^2}[/tex]

Multiply -c/a by 4a and add the two fractions

[tex](x + \frac b{2a})^2= \frac{b^2 - 4ac}{4a^2}[/tex]

Square Root both sides

[tex]\sqrt{(x + \frac b{2a})^2}= \sqrt{\frac{b^2 - 4ac}{4a^2}}[/tex][tex]x + \frac b{2a} = \pm\frac{\sqrt{b^2 - 4ac}}{2a}}[/tex]

Subtract b/2a

[tex]x = \pm \frac{ \sqrt{b^2 - 4ac}}{2a} - \frac b{2a}[/tex][tex]x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}[/tex]

And that's the derivation of the Quadratic Formula.

Determine the value of)
a)2x12+3+1
b) 2x12 +(3+1)​

Answers

a)2x12=24+3=27+1=28
B)24+(4)=28

What is the value of x






Answers

Answer:

23

Step-by-step explanation:

Please help due in a few minutes I will mark u brainliest

Answers

Answer:
y = 4x - 5

How to:

y-intercept: -5
(remember, where it touches the y-axis)

Rise/Run
( It goes up 4 and over 1) 4/1= 4

Hope that helps :)

Which angle marker refers to APD?*
E
D
Р
B
O
1 - Orange
2 - Green
3- Blue
Ο Ο
4 - Purple
O
None

Answers

Answer: None

Step-by-step explanation:

angle APD would suggest that P is the vertex (where the rays of the angle originate) and A and D would be the rays that extend outward from the vertex forming an angle. This angle is not marked on the diagram.

Determine the coordinates of the point that divides directed line segment BA into the ratio 1/3

Answers

Answer: ⁵/₃

Explanation:        well duh it is the answer is all you need to know?

HURRY PLS.... NO WRONG ANSWERS!!!

Answers

A

sorry i did it on my iapd but forgot to show the work...

The answer is B which is 5/7.....tangent means the opposite divide by the adjacent and the opposite is 5 meanwhile the adjacent is 7 so it’s 5/7

Someone help and please make sure it’s right :)

Answers

Answer:

8

Step-by-step explanation:

120/15=8. :)

Answer:

8

Step-by-step explanation:

15x = 120° (exterior Alternate angles)

x = 120/8

x = 8

the angle of a quadrilateral are A.P and the common difference is 10°. find the angles.
help me plz​

Answers

Step-by-step explanation:

So the Ap will be x,x+10,x+20,x+30

Sum of the angles of a quadrilateral is 360

x+x+10+x+20+x+30=360

4x+60=360

4x=300

x=75

So the angles are 75,85,95,105

President Jackson favored state banks over the Second Bank of the United States because he
believed
A.
the Constitution called for a series of state banks.
B.
state banks should issue a uniform national currency.
C.
the Bank could not control the nation's loans.
D.
the Bank had too much power over the nation's economy.

Answers

I believe it’s D! Good luck!
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