Mathematics Middle School

1. Emma used elimination to solve this system of linear equations. 3x + 5y = -17 2x + 4y = 6 Which equation did Emma have after she climinated x? A. 2y =-98 B. 22y = -16 C.-22y = 16 D. 2y = 52​

Answers

Answer 1

Answer:

2y=52

Step-by-step explanation:

1st equation *(-3) and 2nd *(2)

-6x-10y=34

6x+12y=18

eliminate -6x and 6x

add both equations

2y=52

Answer 2

Answer:

2y=52

1st equation *(-3) and 2nd *(2)

-6x-10y=34

6x+12y=18

eliminate -6x and 6x

add both equations

2y=52

Step-by-step explanation:

Related Questions

Please help! Will give 20 Brainly points!

Answers

Answer:

Part A: 3:2 or 3 to 2

Part B: 18 + 12 = 30

ANSWER: 18 blue ribbons and 12 red ribbons

Step-by-step explanation:

for every 3 blue ribbons there is 2 red ones

so if we add 3+2 that is 5 then divide 30 by 5 would be 6 and then separate back into basic numbers so there would be 6 threes and six twos so 18 and 12.

i will give brinlyest
The volume of a cube can be found using the equation V = s³, where V is the volume and s is the measure of one side of the cube.



Match the equation for how to solve for the side length of a cube to its description.



Drag the equation to the box to match the description.

Answers

Answer:

8=729/3

Step-by-step explanation:

The exponent is not suppost to be there so middle ones are wrong and the first one is looking for the middle of the number that is even

Answer:

[tex] s = \sqrt[3]{729} \: in[/tex]

Step-by-step explanation:

[tex] \because V= s^3 [/tex]

[tex] \implies s= \sqrt[3]{V} [/tex]

[tex]\huge \purple {\therefore s = \sqrt[3]{729} \: in} [/tex]

Hope it helps you in your learning process.

Two angles M and R are vertical angles. Angle M is (12x+8) degrees and Angle R is (-5x+76) degrees. What is the value of x?

Answers

X=4
We know this because of the given information that both angels are vertical angles indicating that they’re the same measurement so we can make our equation 12x+8=-5x+76 and first add 5x to both sides in order to cancel out -5x on the right side now from this we have 17x+8=76 and subtract 8 from both sides to cancel positive 8 in the left side and now 17x=68 divide both sides by 17 and get x=4

Answer:

e tokens

Step-by-step explanation:

e tokens

Can you find x for number 8? If right u get brainest and 5 stars.

Answers

Answer:

x = 26

Step-by-step explanation:

8)

6x + x - 2 = 180

7x - 2 = 180

7x = 182

x = 26

yo help

NO LINKS PLS

Answers

Answer:

19 square millimeter

Step-by-step explanation:

Answer:

19

Step-by-step explanation:

Develop a probability model
for the spinner shown.​

Answers

Answer:

Step-by-step explanation:

Heres my example.
Olivia has 5 red marbles 2 green ones 3 orange 4 yellow and one pink. Which one is she most likely to get?

I really need help with this please!?

Answers

rise: 5
run: 3

but it seems to be doubled each time so try writing (2)5/3
Rise: 3

Run: 5

So, 3/5 is the slope

Hope this helps

Expand the expression.
8​(x-5​)

8(x-5)=_x - _(5) = ?

Answers

Answer:

put 8 in both blanks

Step-by-step explanation:

You multiply both tthings in the ( ) by 8.

Answer:

32x

FURTHER EXPANSION WILL BE 8x-40x=-32x

Step-by-step explanation:

please mark as Brainliest

pls help ill follow u if u do

Answers

they are all c you can tell because c is the most unused letter

The base of a rectangular prism has an area of 8 square meters. The height of the rectangular prism is 5 meters.


What is the volume, in cubic meters, of this rectangular prism in cubic meters?

Answers

Do you have a picture
Answer:
V=40m^3
Step-by-step explanation:
V=B*H
B=8m^2
H=5m
V=8*5
V=40m^3

can any one help me with this please

Answers

Answer:

x = 19

Step-by-step explanation:

The area (A) of a trapezoid is calculated as

A = [tex]\frac{1}{2}[/tex] h (b₁ + b₂ )

h is the perpendicular height and b₁ , b₂ the parallel bases

Here A = 180.5 , h = x , b₁ = 13 and b₂ = 6 , then

[tex]\frac{1}{2}[/tex] x (13 + 6) = 180.5 ( multiply both sides by 2 to clear the fraction )

x × 19 = 361 ( divide both sides by 19 )

x = 19

QUICK GAME!!
This is Gill and Sasha
They want you to plan their wedding
Buffet meal:
Location:
Theme colors:
Cake flavor:
Capacity:
Season:
___________________________________________________________________
Instructions: Copy and paste the questions, answer correctly, and have fun! DONT DELETE BRAINLY THIS IS FOR FUN

Answers

Answer:

buffet meal: dog

location: dog park

theme colors: black and brown

cake flavor: chocolate

capacity:

season: winter

Step-by-step explanation:

Every​ hour, 70 people enter an office​ building, and 42 people leave. After how many hours will there be more than people in 140 the​ building? Solve the inequality 70n-42n>140

Answers

Answer:

After 6 hours there will be more than 140 people, but after 5 hours there will be exactly 140 people. I don't know if this question is meant to trick you or not.

Step-by-step explanation:

To find out, 70 - 42 = 28, 140/28 = 5 after 5 hours

70(5) - 42(5) = 350 - 210 = 140

But the question asks when will there be MORE than 140 people, after 5 hours there will be 140 people, and 140 > 140 is not true, so its after 6 hours

(Please DO NOT answer unless you have the CORRECT ANSWER)
A red die and green die are rolled. There are 36 possible combination. What is the probability that people the sum on the dice will equal 8?

Answers

Answer: 11.

Step-by-step explanation:

5/36

2+6=8
6+2=8
4+4=8
5+3=8
3+5=8

Find the circumference of the pizza to the nearest tenth.

Answers

Answer:

31.4in

Step-by-step explanation:

C=2πr=2·π·5≈31.41593

Answer:

about 31.42

Step-by-step explanation:

look at the picture. diamiter is 10. radius is half of diameter, so 5

Jill swam 200 meters in 2 minutes 42 seconds. If each lap is 50 meters long, which time is her estimated time, in seconds, per lap? (2 minutes 42 seconds = 162 seconds)
A. 32
B. 40
C. 48
D. 60

Answers

Answer

The answer is 48 i hope this helped

Step-by-step explanation:

Answer: B

Step-by-step explanation:

there are 4 laps in 200 metres. 200m÷50m

2min 42 sec=120 sec+42sec (162sec)

so,

162÷4=40.5

Answer is B

best answer gets brainliest and plz tell me how you know thats the answer or show work

Answers

The answer is D. Multiply the 1/8 by 40 then 2/5 by 40 you’ll get 21. And 40-21 equals 19
The answer is d cause I know

yall gotta help me
no links

Answers

Answer:

8 baskets

Step-by-step explanation:

254/33= around 8

Mark me Brainliest?

Factor out the greatest common factor: 10x + 55xy + 100xyz

Answers

Answer:

5x(11y+20yz+2)

Step-by-step explanation:

help? thx! :D (it says its too short so ima put this)

Answers

What's the question?

We cant answer without the question

Answer:

C is your answer

10 points! Will give Brainiest if correct!
To get a group discount for baseball tickets, Marco's group must have at least 20 people signed up. The group needs at least 7 more people. Write an inequality to show how many have signed up so far.

Answers

20 > x + 7

Hope this helps!!!

20 > x 7, like the other guy said

Justin deposited $3,000 in a savings account that pays 2.5% interest compounded annually. What is the total value of the account after 4 years?

Answers

0.1



Hope this helps!

Answer:

$3,311.44

Step-by-step explanation:

If there is no annual contribution, there would be a total of $3,311.44 after 4 years. The total intrest would be $311.44

(Here, for explination, I checked my work.)

Find m∠VUR. Justify your answer.

Answers

Angle VUR =130°

Angle VUR and and Angle RUS are Supplementary Angles, meaning the sum of them together =180°

Subtract 50° from 180° and you get 130°.

I hoped this helped.

The elevation was –12 feet at the beginning of your hike at 10:00 a.m. The elevation rose 4 feet every hour until 7:00 pm. At what time did the elevation reach 16 feet?

Answers

Answer:

7:00 pm

Step-by-step explanation:

-12+4= -8

-8+4= -4

-4+4=0

0+4=4

4+4=8

8+4=12

12+4=16

Hope this helps!

It would be at 5:00pm

jamie and his three friends want to split the cost of lunch. They also want to leave a 15% tip. How much should each person pay

Answers

Answer:

you didnt put how much the lunch is so i cant really do anything

Step-by-step explanation:

how much is the lunch??

Please Help me 7th grade math

Answers

Shape 1: 6 inch.
Shape 2: 12 inch.
Shape 3: 9 inch.
shape one is 6 inches, shape two is 12 inches, and shape three is 9 inches. hope this help!

Please answer will mark brainliest

Answers

Interesting think. So sorry if you get it wrong
interest !!!!!!!!!!!!!!!!!!!!!!!

During 16 seasons in the NHL, Wayne Gretzky scored 50% more points than anyone who ever played professional hockey. He accomplished this amazing feat while playing in 280 fewer games than Gordie Howe, the previous record holder. Here are the number of games Gretzky played during each season:

79 82 80 80 74 84 84 79 64 78 73 78 74 86 45 53
Create a box and whisker plot for this data
Determine whether or not there are outliers present
In the form of a paragraph, explain in complete sentences the steps necessary to create the box and whisker plot and to determine whether or not outliers are present. Complete your work in the space provided

Answers

Answer:

Wayne Gretzky scored 50% more points than anyone else who ever played professional Hockey during his 20 seasons in the National Hockey League. He accomplished this amazing feat while playing in 280 fewer games than Gordy Howe, who is the previous record holder. The number of games he played during each season:

79,80,80,80,74 ,80,80,79,64,78,73,78,74,45,81,48,80,82,82,70.

a) The stem and leaf plot for the data can be comfortably obtained from the excel option as follows: XL STAT option in excel as follows:

1. In excel sheet choose XL STAT

2. Then in that choose the visualizing data- uni-variate plots.

3. In univariate plot – chart -select the stem and leaf plot.

4. In quantitative data select the data set and click ok.

A summary of the statistics and a stem and leaf plot can be obtained as follows.

Step-by-step explanation:

Ann is going on vacation. Ann leaves dog food for a pet-sitter to feed her dog, Maggie, while she is away. She leaves 24 cans of wet food and a 38-ounce bag of dry food. Maggie eats 3 1/4
cans of wet food and 5 3/4
ounces of dry food each day. If Maggie eats her normal portions of wet and dry dog food each day, how many days can Ann be gone before Maggie runs out of either wet or dry food?

Answers

Answer: You moltiply them by 4.

Step-by-step explanation:

PLEEEASE HELP ME WITH MATH

Answers

Answer:

Container 1) V = 600

container 2) V≈942.48

Step-by-step explanation:

Container 1)

To find the volume of a rectangular prism, do V=whl.

Container 2)

To find the volume of a cylinder, do V=πr^2h. To find the radius, devide the diameter by two. 10/2=5

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