solve by elimination 5x+2y=-11 and 3x+2y=-9

Answers

Answer 1

Answer:

[tex]5x + 2y = - 11 - - - (a) \\ 3x + 2y = - 9 - - - (b) \\ (a) - (b) : \\ 2x + 0y = - 2 \\ x = - 1 \\ (3 \times - 1) + 2y = - 9 \\ - 3 + 2y = - 9 \\ 2y = - 6 \\ y = - 3 \\ { \boxed{x = - 1}} \\ { \boxed{y = - 3}}[/tex]

Answer 2

Answer:

(- 1, - 3 )

Step-by-step explanation:

Given the 2 equations

5x + 2y = - 11 → (1)

3x + 2y = - 9 → (2)

Subtract (2) from (1) term by term to eliminate y

2x = - 2 ( divide both sides by - 2)

x = - 1

Substitute x = - 1 into either of the 2 equations and solve for y

Substituting into (1)

5(- 1) + 2y = - 11

- 5 + 2y = - 11 ( add 5 to both sides )

2y = - 6 ( divide both sides by 2 )

y = - 3

solution is (- 1, - 3 )


Related Questions

(need help ASAP!!! PLS) Are these answers correct?
76 , 76 , 78 , 80 , 80 , 80 , 82 , 82 , 83 , 85 , 85 , 85 , 88 , 88 , 110

82 is the Median

83.867 is the mean

Answers

Answer:

Yes.

Step-by-step explanation:

Yes, those answers are correct!
To find a median you’d want to find the middle value. Since there are 15 numbers here, you would look for the eighth, as there are seven on either side. If it were an even number, you would look for the two middle numbers, add them, and then divide that by two.
To find the mean, you want to add all the values and divide them by how many there are. So you’d solve for 76+76+78+80+80+80+82+82+83+85+85+85+88+88+110 and than divide the sum of that by 15, since there are 15 total values.

PLEASE HELP ME PLEASE HELP I NEED HELP

Answers

Answer: 9

Step-by-step explanation:

circle formula pi x (rsquared)

R =5 (for all circles)

to find area of all circles multiply the area of one circle by 2. Do this because there are 2 circles on the yard, one whole circle and two half circles, making two circles.

so pi times 25=157.08 (roughly the number is rounded up because the decimal does not end)

now subtract this area from the total area of the rectangle to find the remaining area, which we will fill with wood chips. so 200-157.08=42.92  (using the exact decimal value on my calculator for all calculations, I am rounding them in the explanation.) So now we divide this by 5 because a bag of wood chips covers 5 square feet. 42.92/5=8.58, which we round up to 9, so we need 9 bags of wood chips as our answer.

                                                              Good Luck

The table shows the relationship between the number of strawberries picked from a given number of strawberry plants.

Fill in the missing value in the table.
Number of Plants Strawberries Picked
4 32
6 ___
7 56
9 72

Answers

756 that’s the answer

Answer:

48

Step-by-step explanation:

For the point P(25,-15) and Q​(30,-12), find the distance​ d(P,Q) and the coordinates of the midpoint M of the segment PQ.

Answers

Answer:

[tex]d(P,Q) = \sqrt{34}[/tex]

The midpoint of the segment is M(27.5, -13.5).

Step-by-step explanation:

Distance between two points:

Suppose that we have two points, [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex]. The distance between them is given by:

[tex]D = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]

Distance between P(25,-15) and Q​(30,-12)

[tex]d(P,Q) = \sqrt{(30-25)^2+(-12-(-15))^2} = \sqrt{34}[/tex]

So

[tex]d(P,Q) = \sqrt{34}[/tex]

Coordinates of the midpoint M of the segment PQ.

Mean of the coordinates of P and Q. So

[tex]x_M = \frac{25+30}{2} = \frac{55}{2} = 27.5[/tex]

[tex]y_M = \frac{-15-12}{2} = -\frac{27}{2} = -13.5[/tex]

The midpoint of the segment is M(27.5, -13.5).

Dose anyone know how to solve this?

Answers

Hi there! We are given three functions below:

[tex] \large \boxed{f(x) = \frac{2 + {x}^{2} }{x + 6}} \\ \large \boxed{g(x) = \sqrt{1 + 7x} } \\ \large \boxed{h(x) = | \frac{3}{4} x - 14 | }[/tex]

Next, we are going to substitute the values that replace x-term. Substitute these values in each functions.

We are given below:

f(4)g(2)h(8)

Therefore,

[tex] \large{f(4) = \frac{2 + {4}^{2} }{4 + 6} } \\ \large{g(2) = \sqrt{1 + 7(2)} } \\ \large{h(8) = | \frac{3}{4} (8) - 14}| [/tex]

Then evaluate the value.

[tex] \large{f(4) = \frac{2 + 16}{10} } \\ \large{g(2) = \sqrt{1 + 14} } \\ \large{h(8) = | 3(2) - 14}| [/tex]

[tex] \large{f(4) = \frac{18}{10} \longrightarrow \frac{9}{5} } \\ \large{g(2) = \sqrt{15} } \\ \large{h(8) = | 6- 14| \longrightarrow | - 8| = 8 }[/tex]

Answer

f(4) = 9/5g(2) = sqrt(15)h(8) = 8

Please help I cant fail this math test thank you I appreciate it




9. Bahama Bucks sells ice for $2.89 per
bag. Which equation best represents y,
the total cost of x bags of ice?
A y = 2.89 + x
C X = 2.89 + y
B X = 2.89y
D y = 2.89x

Answers

Answer:

d

Step-by-step explanation:

<33

De los 3000 que tenia kristian compro un traje que le costo el 75%¿cuanto le quedo a kristian despues de comprar el traje?

Answers

Hola, le quedó $750, espero y si sirva :)

The area of the square at right is 36. what is the value of x
a) 6
b) 2
C) 9
d) 4

Answers

It would be answer a)6
The answer is going to be B)2

Helpelelelepelelelelelelellel

Answers

Answer:

0.83 cents

Step-by-step explanation:

$25.35 + $2.99 = $28.34

$30 - $28.34 = $1.66

1.66 ÷ 2 = 0.88

Brainliest

It is 0.83 centszzzzzz

Estimate.
4,754 dived by 1.9 =

Answers

Answer:

2502.1

Step-by-step explanation:

4754/1.9

= 2,502.1

Hence the andwer is 2502.1

HELP IM BEING TIMEDDDDDDDDDDDDDDDDDDD

Answers

Answer:

- 4

Step-by-step explanation:

5 + -3 = 2

2 - 6 = - 4

Hope this helps! :)

I REALLY NEED HELP!!! this is graded and plzzzz no links!!!!!

Answers

8 x 6 = 48 (regularly you’d divide by two but this is on both sides so we’ll leave it)
4 x 10 = 40 / 2 = 20
6 x 4 = 24 / 2 = 12
8 x 4 = 32 / 2 = 16
48 + 20 + 12 + 16 = 96
hope that helps! message me with any questions on other problems.

Select the correct answer from the drop-down menu.

Answers

According to my calculations the following question provided should be number c

[This is 50 points and I’ll give brainliest. Let’s strengthen these Plato answers for math, eh?]

Two friends worked together on an entry for a poetry contest and won; however, there is only one prize and it cannot be split. Some methods of
determining who receives the prize are given below.

Select all the fair methods for determining who receives the prize.

1. throw a stone closest to an object

2. roll a die and evaluate the outcome as either even or odd

3. ask a stranger to flip a coin

4. place both names in equal amounts into a hat and draw one without looking

5. ask a random friend to choose

Answers

Answer: The methods that are fair include __A, B and C__ because __D__ is flawed due to increased chances of winning based on one's skill, ___F___ is flawed due to poor randomization, and ___E___ is flawed due to unequal probabilities of winning and losing.

Step-by-step explanation:

Please help !!!

A
E
B
Point
is the vertex of the angle marked in the figure.

Answers

Answer:

Point E

Step-by-step explanation:

A vertex can be described as an angle formed when two lines intersect or join together. In the figure given, point E is the intersection point.

The point that is referred to as the vertex of the marked angle where the two lines intersect is point E.

Point E is the vertex of <BEC.

2)
A.
B.
Х
f(x)
х
f(x)
0
1
-3
9
2
3
3
-2
4
3
4
- 1
1
4
5
0
0
5
6
1
1
6
7
2
4
C.
D.
х
х
f(x)
3
f(x)
- 1
0
0
2
3
2
3
3
3
0
4
4
3
5
2 0
5
3
6
6
6
3
2
7
Which table does NOT represent a function?

Answers

Answer:

0 through -1 because I did all of the in the 4 grade and I am I am in 6

The tables that represent a function are tables having a repetition of values as the domain

Functions and tablesFor a table to represent a function, each value of the domain must have a unique value in the co-domain.

This means that the x-variables must not have similar values. From the given tables, you can see that table A has 2 being repeated compared to others.

Hence the tables that represent a function are tables having a repetition of values as the domain

Learn more on tables and functions here: brainly.com/question/3632175

does anyone know the answers ? I'm stuck lol

Answers

I'll do the top one
(A) equation : 3/2 x + 0
(B) slope represents amt of choco squares over graham crackers used
(C) y int represents starting amt

help me in this please​

Answers

Answer:

35 rows and 35 numbers of plants in a row.

Step-by-step explanation:

Mark as brainliest

Find x in the parallelogram ?

Answers

Answer:

[tex]x=14[/tex]

Step-by-step explanation:

The diagonals of all parallelograms bisect each other. Therefore, we have the following equation:

[tex]2x+10=5x-32[/tex]

Solving for [tex]x[/tex]:

[tex]2x+10=5x-32,\\42=3x,\\x=\boxed{14}[/tex]

Help please I really need it right now

Answers

Answer:

the hypotenuse is 68 yards

Step-by-step explanation:

A^2+B^2 then square rooted equals C

32^2+60^2

1,024+3,600=4,624

4,624 square rooted is 68

68 yd is your answer

Which is the inverse of the difference of 1/3 - 1/4? A. 0/1
B. 1/12
C. 7/12
D.12/1
Please Help​

Answers

Answer:

12/1

Step-by-step explanation:

Find the heigh of the kite

Answers

Answer: The height of the kite rounded to the nearest tenth is “6.6ft.” To find this answer you can use the basic formula to find the hypotenuse which is a^2 + b^2 = c^2. Where a and b are the two sides and c is the hypotenuse. We have one side and the hypotenuse so we can plug the numbers into the equation like so 10^2 + b^2 = 12^2. Solve for b 100 + b^2 = 144 subtract 100 to both sides to get b^2 = 44. Now all you have to do is find the square root of 44 which turns out to be 6.63324958071 but we are just rounding to the nearest tenth. So your answer results to 6.6ft

Have a nice day!

help mee asappp plsssss​

Answers

multiply the area of a circle by 180/360 because you are finding the area of half a circle. if the angle of a full circle is 360, half a circle is 180

State if the given angles are coterminal
245 , 605
A Yes
B No

Answers

Answer:

thanks for the pointssssssss

I’m guessing yes I am sorry if you got it wrong

Need help on both of these please I am really stressed out

Answers

Answer:

sheeeeeeeeeeshshshshshdh

four is d and five is a :) im not sure about the others im sorry

Which of these is a discrete random variable?
A.
the average height of the players in a basketball team
B.
the average speed of the runners in a relay team
C.
the number of medals won by a country at the Olympics
D.
the average first-serve percentage of a tennis player

Answers

c



......................

write as 0.00147 an ordinary number

Answers

Answer: it can be written as 1.47x10-^3

Step-by-step explanation:

The lines given by the equations y = 2x and y = 0.5x are _____.

A. perpendicular
B. neither perpendicular nor parallel
C. parallel

Answers

Answer:

B

Step-by-step explanation:

Heigh = 9yd ; length = 17 yd ; width = 16 yd

Does anyone know the volume?

Need now!

Answers

Answer:

2448 is the volume

Step-by-step explanation:

HOPE THIS HELPS!

an ice cream factory makes 330 quarts of Ice cream in 2 hours how many quarts could be made in 36 hours what was the rate per day​

Answers

This should help!!!..........

Answer:

multiply UNIT RATE 33 by 36 to answer your first question.

Step-by-step explanation:

1.  for how many hours in a work day is the factory manufacturing ice cream?

2. Obviously the UNIT rate is 33 qts/hour.

3. In 36 hours, the factory could produce 36 times what it produces in one hour.  In other words, multiply UNIT RATE 33 by 36 to answer your first question.

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