Solve using elimination. -2x+2y=2, 2x-y=4.

Answers

Answer 1

Answer:

y=6

x=5

Step-by-step explanation:

x=(y+4)/2

-2(y+4)/2+2y=2

-y-4+2y=2

y-4=2

y=6

x=(6+4)/2

x=5


Related Questions

The radius of a circle is 17.8 ft. Find the circumference to the nearest tenth.

Answers

111.8? I think because the formula for circumference is c=2 pie R and with the information you provided the answer would be 111.84 but rounding it I think it would be 111.8 or I could be rounding the wrong place

Seth owns a local ice cream parlor. He designed a new sign in the shape of an ice cream cone and cut it from plywood. He wants to attach LED lights around the PERIMETER of the sign. A diagram of the sign made from a TRIANGLE and a SEMICIRCLE is shown below. What is the length of LED lights he will need to span the PERIMETER of the sign?

Answers

Answer:2 feet i think?

Step-by-step explanation:

sorry need points

???? Please help!!!!!!!

Answers

Answer:

It would probably be C

I need help please no links

Answers

B determine the cost of 11 bags price

Answer: 24.5 or 25 1/2

I GIVE BRAINLIEST

please hurry im timed!

Answers

Answer:

my answer is C hope it helps in thank you

Amelia used 666 liters of gasoline to drive 484848 kilometers.
How many kilometers did Amelia drive per liter?

Answers

Answer:

728 km / lit

Step-by-step explanation:

kilometers per liter = kilometers / liters

k/l = 484848 / 666

kilometers per liter = 728

Answer: The answer is 8 kilometers

Step-by-step explanation:

khanacademy

Bruce spends 15% of his monthly budget on groceries. What is the decimal equivalent of 15%?

Answers

Answer:

0.15 no promble

Step-by-step explanation:

take the demical from behind and go forward 2 times

The table shows input and output values of the function y = x2 + 12x – 2. What is an approximate solution of the equation x2 + 12x – 2 = 0?


Answers

Answer:

the answer is 0.16 & -12.16

a packing box is 3.5 feet by 1.4 feet by 1.8 a box that is 3.1 feet by 1.1 feet by 1.4 feet is placed inside the first box the rest of the box is filled with packing foam how many cubic feet does the packing foam take up​

Answers

The packing foam takes up approximately 4.606 cubic feet of space in the larger box.

To calculate the volume of the packing foam, we need to determine the volume of the larger box and subtract the volume of the smaller box.

The volume of the larger box is given by length × width × height, which is 3.5 feet × 1.4 feet × 1.8 feet = 8.82 cubic feet.

Similarly, the volume of the smaller box is calculated as 3.1 feet × 1.1 feet × 1.4 feet = 4.214 cubic feet.

To find the volume of the packing foam, we subtract the volume of the smaller box from the volume of the larger box:

8.82 cubic feet - 4.214 cubic feet = 4.606 cubic feet.

For more such questions on packing

https://brainly.com/question/30767057

#SPJ8

Need help finding the Area for both of these shapes.

Answers

Answer:

Shape 1 :36

Shape 2 : 18

Step-by-step explanation:

Shape 1 : So lets break this into 3 different shapes 2 triangle and 1 rectangle. trangle number one is 3x6÷2=9 since both the trangles are the same its 9+9=18. The rectangle is 3x6 which is 18 18+18=36

__________________________________________________________

Shape 2: Lets break it up the same way we did to shape 1, first triangle is 3x5÷2 which is 7.5 since both triangle is the same its 7.5+7.5=15. The ractangle is 3x1 which is 3 so 15+3=18

Hope this helped! :)

Can anyone explain how to do this, please?

Answers

the answer is range. your welcome z

Bernard had 15 red notebooks, 17 blue notebooks and 19 white
notebooks. He gave some of them to Tom and had 5 left. How
many notebooks did Bernard give Tom?

Answers

Answer:

He gave 46 to Tom

Step-by-step explanation:

He started is 51 notebooks- 15 + 17 + 19 = 51

He then gave some away until he only had 5 left 51 - 5 = 46

He gave 46 to Tom

if you add all of the books you get 51. it’s says he had five left so subtract 5 from 51 and you get 46. he gave 46 to tom

10) What is the value of x in the figure below?

Answers

Answer:

x=68

Step-by-step explanation:

let y equal the vertical angles

49+55+ y= 180

y=76

vertical angles are equal

35+76+x=180

x=68

In Exercises 21-26, a fair coin is tossed two times in succession.
The set of equally likely outcomes is {HH, HT, TH, TT). Find the
probability of getting
21. two heads.
22. two tails.
23. the same outcome on each toss.
24. different outcomes on each toss.
25. a head on the second toss.
26. at least one head.

Answers

Answer: I need more context

Step-by-step explanation:

What is the perimeter and area? I will give brainliest if you answer correctly and no links or you will be reported ​

Answers

Answer:

perimeter is 36 cm

Step-by-step explanation:

a perimeter of a regular hexagon is 6a

soo sorry I don't know its area

solve for x. round all answers to the nearest tenth. 22 54

Answers

Answer: x= 27.2

Step-by-step explanation:

Rohan dropped a lacrosse ball from a building.



After each bounce, the height of the ball is measured and recorded in the table.

Bounce Number Height (cm) After Bounce
1 10,240
2 2,560
3 640
4 160
Write an explicit and recursive formula to represent the sequence of the height of the ball after each bounce.

What is the height of the ball after bounce 8? Explain your answer by using one of the formulas you created.

Answers

Answer:

The nth bounce a sub n is 0.25 (a sub n-1)

0.625 cm

  Recursive formula of the sequence[tex]T_n=10240(\frac{1}{4})^{n-1}[/tex]

  Explicit formula of the sequence → [tex]T_1=10240, \\T_{n+1}=T_n(0.25)[/tex]

  Height of the ball after 8th bounce will be 0.625 cm.

Geometric sequence and its explicit and recursive formula,If a sequence is in the form of [tex]ar,ar,ar^2,ar^3.....[/tex] n terms,

        Sequence will be the geometric sequence and the explicit formula

        of the sequence will be,

        [tex]T_n=ar^{n-1}[/tex]

        Here, [tex]a=[/tex] First term

        [tex]r=[/tex] Common ratio

        [tex]n=[/tex] Number of terms

Similarly, recursive formula will be,

        [tex]a=[/tex] First term

        [tex]T_{n+1}=T_n(r)[/tex]

From the table attached,

There is common ratio between the successive term and previous term under the column (height after the bounce) is,

[tex]\frac{T_2}{T_1}=\frac{2560}{10240}=\frac{1}{4}[/tex]

[tex]\frac{T_3}{T_2}=\frac{640}{2560}=\frac{1}{4}[/tex]

Therefore, height of the ball after each bounce will represent a geometric sequence.

Explicit formula of a geometric sequence will be given by the expression,

[tex]T_n=10240(\frac{1}{4})^{n-1}[/tex]

Recursive formula for the sequence will be,

[tex]T_1=10240[/tex]

[tex]T_{n+1}=T_n(\frac{1}{4})[/tex]

By using recursive formula,

Height of the ball after 8th bounce,

[tex]T_8=10240(\frac{1}{4})^{8-1}[/tex]

    [tex]=10240(0.25)7[/tex]

    [tex]=0.625[/tex] cm

      Therefore, explicit formula to represent the height of the ball will be [tex]T_n=10240(\frac{1}{4})^{n-1}[/tex]recursive formula will be, [tex]T_1=10240\\T_{n+1}=T_n(0.25)[/tex]

       And height of the ball after 8th bounce will be 0.625 cm.

Learn more about the geometric sequence here,

https://brainly.com/question/25250161?referrer=searchResults

Stephanie will be representing her school at the district track meet in the 200 meter race. She has kept records of her last 5 races. What is the mean absolute deviation of her races? Round your answer to the nearest tenth.RaceTime (seconds)123.6225.1324.8422.9524.2Record your answer and fill in the bubbles on your answer document. Be sure to use the correct place value.

Answers

Answer:

119.816

Step-by-step explanation:

Given the data :

123.6, 225.1, 324.8, 422.9, 524.2

Mean absolute deviation (MAD) :

Σ|x - m| / n

m = mean = ΣX / n

n = same size = 5

m = 1620.6 / 5 = 324.12|

[|123.6 - 324.12| + |225.1 - 324.12| + |324.8 - 324.12| + |422.9 - 324.12| + |524.2 - 324.12|] / 5

= 119.816

Ishaan is 3 times as old as Christopher. He is also 14 years older than Christopher. How old is Christopher?

Answers

Answer:

He is 42 years old.

Step-by-step explanation:

3 x 14 = 42

The 3 is for how many times older Ishaan is.

The 14 is how many years older than Christopher Isahaan is.

If you need to find Isaahan's age, just multiply 2 x 14, which is 28.

Isahaan is 28 years old, and Christopher is 42 years old.

Glad I could help!

-Vibilities

Help ASAP! Giving brainliest to whoever answers first!!!

Answers

10 i think
explanation:
Counted after 65 and before 75

Answer:

9

Step-by-step explanation

66, 67, 68, 68, 70, 71, 71, 71, and 72

(=^w^=)

PLEASE HELP!!! ASAP

In the figure, j | k and m<1 =
63º.
What is the m<4?
Enter your answer in the box.

Answers

DO NOT CLICK THE LINK ITS A VIRUS!!! I DONT KNOW THE ANSWER

PLEASE HELP ME ITS DUEEE TODAYY!!!!!!!!!

Answers

height =h=16inch

Answer:

volume of cuboid =l×b×h

3840in³=20×12×h

h=3840/240=16inch

are these complementary or supplementary or neither

Answers

answer:
neither
explanation:
they are vertical angles

answer these questions please ill give brainliest if your aanswer is right

Answers

Question 2: D
Question 1: C
Question 3: B
Question 4: C

please help!! Which side lengths form a right triangle?
A 1, 2, 3
B 3, 4, 5
C 5, 6, 7

Answers

9514 1404 393

Answer:

  B.  3, 4, 5

Step-by-step explanation:

The Pythagorean triple (3, 4, 5) is the only Pythagorean triple that is an arithmetic sequence. It is also the triple with the smallest integers. It is useful to remember this triple, as it is seen a lot in algebra, geometry, and trig problems.

__

Side length 1, 2, 3 do not form a triangle.

Side lengths 5, 6, 7 form an acute triangle.

Side lengths 3, 4, 5 form a right triangle.

A number is chosen at random from 1 to 10. Find the probability of selecting
an odd number

Answers

Answer:

5 out of 10, 5/10, or 50%

Step-by-step explanation:

Mhanifa can you help this is due soon!!

Answers

Answer:

Question 1

Given pentagon

Sum of interior angles:

S = (5 - 2)*180° = 540°

Sum of exterior angles is same for any polygon:

360°Question 2

Given hexagon

Sum of interior angles:

S = (6 - 2)*180° = 720°

Sum of interior angles of a given hexagon:

x + 120° + 156° + 145° + x + 9° + 90° = 720°2x + 520° = 720°2x = 200°x = 100°

PLEASE HELP
I DONT UNDERSTAND
In the diagram below, DE AE, BA | CE, CB || D A and mZE = 54°. Find mZC.​

Answers

Answer:

angle D should be equal to angle C

Step-by-step explanation:

i think this is the answer you need but i'm not sure

I will give you BRAINLIEST for the correct answer

Answers

Answer:

If I got this wrong pls dont get mad but I think the answer 150

6(10+z+3) whats the answer i need help and also when someone texts you lol what would you say

Answers

6(10+z+3)
= (6)(10 + z +3)
= (6)(10) + (6)(x) + (6)(3)
= 60 + 6x + 18
= 6x + 78
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