Solve the system by elimination. . 4x-9y=-21 , -4x-3y=9

Answers

Answer 1
(-3, 1)
4x-9y=-21
+-4x-3y=9
-12y= -12
y=1

4x- 9(1)= -21
4x-9=-21
+9 +9
4x= -12
x=-3

Related Questions

Hallar el valor de x

Answers

Answer:

whats the question??

Step-by-step explanation:

thanos has 15 donuts. he cuts those into fifths. then he cut those fifths into halves. then he cut those halves into thirds. how much pieces does thanos have?

Answers

Answer:450

Step-by-step explanation:

Russia's currency is called the ruble, and is denoted with this symbol: Rub. An electrical contractor has Rub850,360 in his business's bank account.If at the end of the week he deposits Rub119,980 in payments made from clients and then pays out Rub79,205 in wages, how much money will he have left in his account?

Answers

Answer:

He will

have RUB 891,135 present to the same government

Step-by-step explanation:

Here, we want to calculate the amount of money that will be left in the account

To get this, we simply subtract the payments and add up the deposits to the initial

Thus, we have;

850,360 + 119,980 - 79,205 = 891,135

The floor of a new planetarium is a circle with a 13-yard diameter.A stage will occupy a quarter circle section of the floor.The material for the stage will cost $31.47 per square yard. If no material is wasted when making the stage,how could you find how much the stage will cost? Use 3.14

Answers

Answer:

$1,043.74

Step-by-step explanation:

Area of the circular floor = πr²

Since the stage only occupies a quarter circle section of the floor, then;

Area of the stage = πr²/4

Given

diameter of the floor = 13yd

radius = 13/2 = 6.5yd

Find the area of the stage;

Area of the stage = π(6.5)²/4

Area of the stage = 3.14(42.25)/4

Area of the stage = 33.16625yd²

If the material for the stage will cost $31.47 per square yard, this means;

1yd² = $31.47

33.16625yd² = x

Cross multiply

x = 33.16625*31.47

x = 1,043.74

Hence the stage will cost $1,043.74

Solve by substitution. 2x+5y = 13
3x = 7 +5y

will give brainliest

Answers

Answer:

(4.1) Equation Form: x = 4 , y = 1

Answer: (4,1)

Step-by-step explanation:

PLEEASEEEE HELP ASAP WILL GIVE BRAINLIST TO WHO EVER IS FIRST

Jake has a balance of -$142 in his bank account. After he deposited $550 into the account, what was Jake's new balance
A.$0
B.$358
C.$642
D.$368

Answers

The answer is C hope that helps

HELP! what is 1.278 and 1.281 and 1.284 from least to greatest

Answers

Answer: 1.278, 1.281, 1.284

Step-by-step explanation:

Adriana can read 6 pages in 10 minutes. At this rate, how many pages can
she read in 25 minutes *
Your answer

Answers

Answer:

23 pages.

Step-by-step explanation:

10=6 10+10=20 half of 6=3 20+3=23

answer: Adriana can read 16 pages in 25 minutes

Help I don't know his help meeee

Answers

Answer:

30

Step-by-step explanation:

The rise is the space between the two points vertically.

We can take the two y points (60 and 120) and find the difference between the two. 120 - 60 = 60 between the two. That means the rise = 60.

The run is the difference between the two points horizontally. We can take the two x points (4 and 2) and find the difference between the two. 4 - 2 = 2. The run = 2. Rise/run = 60/2. This can be simplified to 30/1 or 30.

What is the answer to 2 + -1/3 =

Answers

The answer is : 1:6 repeating

Which 3 relationships are true in the construction below?

Answers

Answer:

The correct options are;

Line CD is the perpendicular bisector of line AB

Line segment AB is perpendicular to line CD

Line segment AE is congruent to line segment BE

Step-by-step explanation:

From the construction, we have that the radius of circle A is equal to the radius of circle A as the circumference of circle A passes through the center of circle A

Therefore, the construction is the bisection of line segment AB by the construction of the perpendicular bisector CD, from which we have line segment AE is congruent to line segment BE and line segment AB is perpendicular to line CD

B
1
N
4
5
5
(4x+6)
(5x -5)
7
00
0
A
С
(3x + 8)
The value of x is
and the length of the base is

Answers

Answer: (2x + 3) • (x-1)

Step-by-step explanation:

1 Pull out like factors :

4x + 6 = 2 • (2x + 3)

STEP

3

:

Pulling out like terms

3.1 Pull out like factors :

(5x - 5) = 5 • (x - 1)

Consider the equation: 6x + 55 = x 2 power
1. Rewrite the equation by completing the square. Your equation should look like (x + c)² = dor (2-c)2 = d. 1. 2) What are the solutions to the equation? Choose 1 answer:
A. x=-3+_8
B. x=3+_8
C. x=-8+_3
D. x= 8+_3​

Answers

Answer:

a

Step-by-step explanation:

Answer:

Im pretty sure its d its defenantly NOT A

Step-by-step explanation:

5. Solve for x.
6. Solve for
(9x - 16)
I
(3.1 + 11)
(7x - 5)
ments
X =
7 Find m

Answers

Answer:

12*56-56+11=12

Step-by-step explanation:

12 for 56

Transform the following formulas as indicated.
A = bh, solve for h

a=1/2h (a+b), solve for b

Answers

Is there a problem equation?

At a concession stand 6 hot dogs cost $6.72. At this rate, how much would 8 hot dogs cost, in dollar sand cents?​

Answers

Answer:

$8.96

Step-by-step explanation:

Sorry if its to late

please help!
the question is in the picture because i can’t type it out :)

Answers

Answer:

x=3

y=2

Step-by-step explanation:

The solution of absolute value equation I x - 4 | =6 is...

Answers

Can I get brainliest ?

ANSWER FOR BRAINLIEST


A unit rate is a rate in which the unit in the denominator is :

A) 1
B) 3
C) 2

Answers

I believe it would be A. 1

Look at the picture below. Do the diagonals bisect each other?
A) Yes
B) No

Answers

Answer:

Yes

Step-by-step explanation:

Since the lines cross over each other, yes, they do bisect each other.

~theLocoCoco

Allison has $35 to spend at the pet store. She buys a large dog bowl for $15 and dog shampoo for $8. She wants to buy some dog bones that sell for $1.25 each.
a.) Write and solve an inequality to find the maximum number of dog bones, x, Allison can buy.

Answers

Answer:

She can buy 9 bones.

Step-by-step explanation: Because 9 times 1.25 equals $11.25 for bones.

During the first week of a certain month, a computer store sells 11 computers. A sale begins on the second week of the week and during the second week the computer store sells 17 computers. What was the percent increase in sales from the first week of the month to the second week of the month ?

Answers

Answer:

The percentage increase in sales is 54.45%

Step-by-step explanation:

Here, we want to calculate the percentage increase

mathematically the increase in sales is 17-11 = 6

The percentage increase is ;

6/11 * 100% = 54.45%

help I suck at math lol

Answers

For 14/8, you first have to simply it by dividing both numbers by 2


So that it becomes 7/4, which is 1 3/4






For 48/9, divide both numbers by 3


So that it becomes 16/3 which is 5 1/3

Answer:

14/8 = 1 3/4

48/9 = 5 1/3

Step-by-step explanation:

14/8 = 1 6/8

6/8 = 3/4

14/8 = 1 3/4

48/9 = 5 3/9

3/9 = 1/3

48/9 = 5 1/3

9 oranges cost $3.60. How much are 4 oranges?

Answers

Answer:

      $1.60

Step-by-step explanation:

Set up an equation where you have the total oranges (o) on top and the cost (c) on the bottom. So you will have two fractions equaling each other. So you will have o/c=o/c. Now you just have to replace the variables with what you know. 9 oranges= $3.60, and you want to know how much 4 oranges cost. Since the cost per orange is the same, no matter how many oranges you buy if you divide the amount of oranges by the price you will always get the same number. So replace the variables with the numbers you know and you get,

9/$3.60=4/c

Now to solve an equal fraction problem, simply cross multiply (multiply the two numbers diagonal so 4 and 3.6), and divide (take the multiplied number and divide by the number remaining which will be the number diagonal from the variable) which gives you $1.60 for four oranges.

Point C is located at (1, 2), and point D is located at (-4,-2). Find the point that is the distance from point C
to point D. (1 point)
a. (-0.25, 1)
b. (-1.5,0)
c. (-0.5, 1.5)
d. (0.25, 2.25)

Answers

Answer:

The answer would be c

Step-by-step explanation:

i choosed c because u have da negative sign in front of 4 and 2 and positive numbers with 1 and 2

Answer:

b

Step-by-step explanation:

I think this means to find the mid-point(?) of the line which by doing that you take both x-values and you add them and then divide by two, and then you take both y-values and add them and then divide by two. So you have: (1+-4)=-3, (-3/2)=-1.5

-1.5=x

(2+-2)=0, (0/2)=0

0=y

(-1.5, 0)

What is the approximate area of the circle shown below?
OA. 30 cm2
OB. 39 cm2
DC. 121 cm2
OD. 19.5 cm2

Please help ASAP!

Answers

Answer:

C. 121cm2

Step-by-step explanation:

The area of a circle is pir^2.

Let pi be rounded to 3.14 and r = 6.2cm

6.2^2*3.14 = 120.76, which rounds to 121cm2

Answer:

C)  21 cm²

Step-by-step explanation:

area of a circle = π r²

                         = π (6.2)²

                         ≈ 21 cm²

Francis used the distributive property of multiplication to help him solve the equation 6 x 2 = ________. Francis did not get the same answer for each side of the expression. Explain the steps required to correct his mistake. 6 x 2 = (3 x 2) + (4 x 2) 12 = 6 + 8 12 = 14

Answers

Solution :

The distributive property of multiplication :

It is given that we have to find the solution for the below expression using the distributive property of multiplication,

So 6 x 2 = __________

Using distributive property, we can write :

⇒  6 x 2 = 12

⇒ (3 + 3) x (2 ) = 12

⇒  (3 x 2) + (3 x 2) = 12

⇒  6 + 6 = 12

⇒     12 = 12

y varies directly with x. If x = 6 and y = -12 what is y if x = -3
Type your answer...

Answers

Answer:

y=6

Step-by-step explanation: yes

if I would have 160$ and was discounted by 75 percent and if used a PROMO CODE and it gave me 10 percent off how much would I have​

Answers

Answer:

10 percant off how much would i have

NEED HELP ASAP PLEASE!!!!!!!!

Answers

ANSWER

X = 70

Explanation: in an isosceles triangle the two bases equal each other

Equation set up - 2x + 2x + 40 = 180

Step-by-step explanation:

PQR = PRQ = 2x ° ( base angle of an isosceles are equal ) .

therefore

PQR + PRQ + QPR = 180° ( sum of angles in a triangle )

2x + 2x + 40 = 180

4x + 40 = 180

subtract 40 from both sides

4x = 140

divide through by 4

x = 35°

Other Questions
SOMEONE HELP ME PLEASE ILL GIVE BRAINLY Chemical change physical change Which describes a difference between bivalves and cephalopods?Bivalves use tube feet for movement, and cephalopods use muscular feet for movement.Bivalves live only in ocean environments, and cephalopods live in a variety of aquatic environments.O Bivalves use a radula to feed, and cephalopods use filter-like structures to feed.O Bivalves have an open circulatory system, and cephalopods have a closed circulatory system. The between two points can be found by drawing a triangle. The length of this is the of the right triangle, the other two sides are and Example One: Determine the distance between the two points: (-2, -3) and (3, 4) (1) the points and the segment. a right triangle, and the units for the legs. (3) the right triangle, with and (4) Set up an equation. Simplify and solve a + b = c I need to know where to place the dot Evaluate x + 2x - 4 if x = -4. Question 2 (1 point)Which state of matter has the lowest density and the highest energy? Which is the action verb in the sentence, In the novel The Red Badge of Courage, a young soldier fights his fears of battle. Sam calls a friend to get help with his math homework. Which instructions would best help Sam solve the inequality shown below? 15 3/4 < -2 + xF. Add 15 3/4 to both sides of the inequality.G. Subtract 2 from both sides of the inequality.H. Add 2 to both sides of the inequality. J. Subtract 15 3/4 from both sides of the inequality. Taxation without representation refers to what?ATaxing people who have no say in the tax laws themselves.BTaxing countries imports.CTaxing people who are members of a parliament.DTaxing countries exports. for a new neighbor, 100 acres of land will be split into 10 lots. How many acres will each lot have? Which was a major accomplishment of the ancient people under the Shang Dynasty's rule? A. The people invented the wheel. B. The Shang had the first female ruler. C. The Shang government abolished slavery. D. They developed a writing system. Which type of reaction does food digestion represent? During digestion, enzymes act on food to break down the complex substance present in food to simpler substances. These chemical reactions are ________reactions. A line passes through point A (14,21). A second point on the line has an x-value that is 125% of the x-value of point A and a y-valuethat is 75% of the y-value of point A. Use point A to write an equation of the line in point-slope form.?:( 452356273567187+646735264273852927648463768636478476804387098-3768370678679868687675785+34579256289574678556+87673976-7568975268565786578467858485647694587897436754675686587897558785578576830463809745 What is the value of 3x^2+4x+12 when x=-2 An invested sum of $600000 to generate simple interest $3.9000 at 3 (whole number) 1/4% per annum if you don't know please don't answer Ashley and her four friends went trick-or-treating. Each one of them got 4/5 of a bag of treats. How many bags of treats did they have in total? 27) What is the formula of area of a circle? Am not sure what this answer is How many chromosomes do human somatic cells (body cells) have?