Solve the system of linear equations by ellmination. 5x + 9y = -11 3x + 9y = -3 A. (-4,-1) -B. (-1, –4) C. (-4,1) D. (1,-4)​

Answers

Answer 1

Answer:

Step-by-step explanation:

5x + 9y = -11

3x + 9y  = -3

5x + 9y = -11

-3x - 9y = 3

2x = -8

x = -4

-12 + 9y = -3

9y = 9

y = 1

(-4, 1)

Answer is C


Related Questions

According to her running log, Alexa averaged 4 Miles per week last month and 50%less this month. How much did she average this month?

Answers

Answer:

2 miles per week

Step-by-step explanation:

If she averaged 50% less this month, that means her average this month is half of 4.

Divide 4 by 2

4/2

= 2

So, she averaged 2 miles per week this month

3. Five more than a number is below 17. Use n
for the number.

Answers

Answer:

n + 5 = below 17

Step-by-step explanation:

Answer:

n+5<7

Step-by-step explanation:

n+5<7

This is just what I think the problem is asking. Since it asks for 5 more than a number(it doesn't specify what number), then it doesn't matter what number it is. It didn't say that the number is 17, which means that the equation is probably an unequality sentence.

You want to find the width, AB, of a river. You walk along the edge of the river 100 ft and mark point C. Then
you walk 22 ft further and mark point D. You turn 90° left and walk until your location, point A, and point C are
collinear. You mark point E at this location, as shown.

(a) Suppose DE = 42 ft. What can you conclude about the width of the river? Explain. Your explanation
should include the approximate width and how you got this answer.
(b) Can you conclude that △ and △ are similar? Why or why not?

Answers

Answer:

I have been trying to figure this one out, I'm sorry but i don't know the answer

Step-by-step explanation:

i hate math

In the parallelogram below, y=

Answers

Answer:

[tex] \\ \huge\boxed{\ddot\smile}[/tex]

A consumer organization inspecting new cars found that many had appearance defects (dents, scratches, paint chips etc.). No car had more than three defects. Here is the probability distribution for the number of appearance defects in a new car. X: number of defects 0 1 2 3 P(x) 0.61 0.21 0.11 0.07 Find the expected number of appearance defects in a new car. Do not round.

Answers

Answer:

The expected number of appearance defects in a new car is 0.64.

Step-by-step explanation:

To find the expected number of appearance defects in a new car, we multiply each outcome by its probability.

We have that:

0.61 probability of 0 defects

0.21 probability of 1 defect

0.11 probability of 2 defects

0.07 probability of 3 defects

0.61*0 + 0.21*1 + 0.11*2 + 0.07*3 = 0.64

The expected number of appearance defects in a new car is 0.64.

MATH SEND HELP THANKS BAES

Answers

alternate interior:
4,5 and 3,6
alternate exterior:
1,8 and 2,7
same side interior:
4,6 and 3,5
corresponding angles:
1,6
2,5
4,7
3,8
:)

What is the value of the digit 8 in the number 14.812?

Answers

Answer:

the tenth or 0.1

The 8 is in the Tenth place value

What is equivalent to (9f + 12)*4)

Answers

Answer:

10

Step-by-step explanation:

plz help yall I´m really bad at this

Answers

Answer:

should be -15

Step-by-step explanation:

On August 20, 1989, in Cologne, West Germany, Said Aouita of Morocco also established a world record when he ran the 3000. m run in 7 minutes, 29.45 seconds. What was his average speed (in m/s) for the race? Remember to include your data, equation, and work when solving problem
PLS HURRY I HAVE TO TURN THUS IN!!!!!

Answers

Answer:

Average speed of Aouita = 6.68 meter per second.

Step-by-step explanation:

To create a world record Aouita ran a distance = 3000 m

He took the time to cover this distance = 7 minutes 29.45 seconds

                                                                 = (7×60) + 29.45 seconds

                                                                 = 449.45 seconds

Since, formula for the average speed is given by,

Average speed = [tex]\frac{\text{Total distance covered}}{\text{Total time taken}}[/tex]

Therefor, average speed of Aouita = [tex]\frac{3000}{449.45}[/tex]

                                                          = 6.675

                                                          ≈ 6.68 meter per second

Average speed of Aouita was 6.68 meter per second.

Answer:

6.67 m/s

Step-by-step explanation:

7 * 60 = 420

420 + 29.45 = 449.45

V = 3000. / 449.45= 6.67 m/s

Round the fraction to the nearest whole number. 7 3 8

Answers

Answer:

9

Step-by-step explanation:

what is 3x4x19x39x4x9x11x10x20squared-10473408000 tee-hee

Answers

Answer:

A seizure and a half

Step-by-step explanation:

Answer:

495962981439552000

need help fast thank you​

Answers

Answer:

a

Step-by-step explanation:

the answer is a because thats the answer.

Answer:

No it is the second one because:

-    7x => x represents the number of cans to be collected in 7 days

you've already collected 668 cans, and 2000 cans is the target.

2000-668= 1332÷7- 190.30

PLEASE HELP!
Find values for p and q so that the equation has infinitely many solutions.

-7x + p = qx + 1

p =

q =

Answers

Step-by-step explanation:

a1/a2=b1/b2=c1/c2

-7=p=qx+1

p= -7 ,qx+1= -7

p= -7 ,q= -6/x

PLEASE HELP I WILL MARK BRAINLY IF THE ANSWER IS CORRECT

Answers

Answer:

I think it is B.

Step-by-step explanation:

Hope this helps.

I’m pretty sure it’s b

Jon had 45 dollars in his account. He made 7 dollars
per hour at his job. At the end of the week he had 150
dollars in his account. How many hours did he work?

Answers

First, 150-45 because we already know he had 45 dollars so we are left with 105$ so next you do 105$ divided by 7$ which gives you 15 hours. The answer is 15 hrs :)

1. Circle the figure you would use to make the Escher‐like tessellation given.

Answers

Answer:

b ? i have never seen anything like this though so please dont take my word

Step-by-step explanation:

Answer:

c

Step-by-step explanation:

Please see image below. What is the value of X in the figure to the right? What is the measure of angle DGC in the figure to the right?

Answers

Answer:

x = 50

DGC: 130 degrees

Step-by-step explanation:

x and the angle next to the angle x-10 are vertical angles are equal, so that means the two angles that add up to 90 are x and x-10.

x + x - 10 = 90

2x - 10 = 90

2x = 100

x = 50

The measure of angle DGC is:

180 - x

180 - 50

130

43 POINTS IF U DO THIS! + ILL MARK BRAINLIEST!

Answers

Answer:

The second one

210 lbs

Step-by-step explanation:

The difference between 7 and 4 is 3

90/3 = 30

30 times 7 = 210

Answer:

Second Diagram

Step-by-step explanation:

What is the value of x? (5 points)

A right angle is shown divided into two parts. The measure of one part of the right angle is 10 degrees. The measure of the other part is 2x

Answers

A right angle measures 90 degrees.
The angle is broken into to parts, 10 degrees and 2x.

90 = 2x + 10

Subtract 10:
80 = 2x

Divide by 2:

x = 40

Answer what you can. You don’t have to show your work but please do.

Answers

Answer:

I'll help with the first 2

(  12/4x7-18=

12/4=3

3x4=12

12-18= -6  )

(  8[tex]{2}[/tex] - 22/2x7=

8x2=16

22/2=11

11x7=77

16-77= -61  )

Step-by-step explanation:

PEMDAS

P-(  ) Parenthesis

E- Ex[tex]x^{2}[/tex]  (Exsample-2[tex]{2}[/tex] = 2x2=4 )

M=Multiplication X

D-Division

A-Add +

S-Subtraction

What is the y-intercept of the linear function?

y=5/2x-4

Answers

-4 is the y intercept (b)
the y intercept is -4
hope this helps !

Helpppp pleaseeeeeeeeeeeeeee

Answers

Answer:

Step-by-step explanation: C %100

Answer:

I believe it is d but don't quote me on it

30 PTS
Please make sure its easy to understand

Answers

1. -1/20
work: Write all numerators above the least common denominator: -8+2+5/20
*Calculate the sum or difference: -1/20

What is the exact circumference of a circle with a radius of 15 cm?
O 10 cm
O 15 cm
O 30 cm
O 60 cm

Answers

Answer:

Step-by-step explanation:

None of the choices is correct.

Circumference= 2πr = 30π cm

Write the equation in Point-Slope Form of a line that has a slope of 3/4 and passes through point (-4, -12).

Answers

Answer:

The equation in Point-slope form of a line that has a slope of 3/4 and passes through the point (-4, -12) is:

[tex]y+12=\frac{3}{4}\left(x+4\right)[/tex]    

The graph of the equation line is also attached below.    

Step-by-step explanation:

Given

Slope m = 3/4Point (-4, -12)

To determine

We have to determine the equation in Point-Slope Form.

We know that the Point-slope form of a line equation is defined as

[tex]y-y_1=m\left(x-x_1\right)[/tex]

where

[tex]m[/tex] is the slope of the line[tex]\left(x_1,\:\:y_1\right)[/tex] is the point

In our case:

Slope m = 3/4(x₁, y₁) = (-4, -12)

substituting the values m = 3/4 and the point (x₁, y₁) = (-4, -12) in the point-slope form of the line equation

[tex]y-y_1=m\left(x-x_1\right)[/tex]

[tex]y-\left(-12\right)=\frac{3}{4}\left(x-\left(-4\right)\right)[/tex]

Apply rule:  [tex]-\left(-a\right)=a[/tex]

[tex]y+12=\frac{3}{4}\left(x+4\right)[/tex]    

Therefore, the equation in Point-slope form of a line that has a slope of 3/4 and passes through the point (-4, -12) is:

[tex]y+12=\frac{3}{4}\left(x+4\right)[/tex]    

The graph of the equation line is also attached below.    

Find c.
Round to the nearest tenth:

Answers

Answer:

it'd be 95

Step-by-step explanation:

that's the nearest 10th

Five times a number decreased by 8 is less than 37. Write an algebraic inequality to represent this situation. Then solve algebraically & graph.

Answers

Answer:

5x - 8 < 37 and x < 9

Step-by-step explanation:

again, sorry if it's wrong.

5x - 8 < 37

    +8   +8

5x < 45

----   -----

5     5

x < 9

97.28 ÷ 19
PLEASE HELP PLEASE PLEASE HURRY HELP ME PLEASE

Answers

5.156842105263158



lol

Answer:

5.12

Step-by-step explanation:

is a symbol for Zero used in the Roman numerations systems​

Answers

Answer:

no

Step-by-step explanation:

the word they used for zero is nulla meaning none

they used the word nulla to signify zero, or none. so no there is no roman symbol for 0.
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